perf.main.O0.data.out

application/octet-stream

Filename: perf.main.O0.data.out
Type: application/octet-stream
Part: 3
Message: Re: Use heap scan routines directly in vac_update_datfrozenxid()
# To display the perf.data header info, please use --header/--header-only options.
#
# dso: postgres
#
# Total Lost Samples: 0
#
# Samples: 44  of event 'cpu_atom/cycles/P'
# Event count (approx.): 13134405
#
# Children      Self  Command   Symbol                            
# ........  ........  ........  ..................................
#
    33.54%     0.00%  postgres  [.] heap_fetch_next_buffer
            |
            ---heap_fetch_next_buffer
               read_stream_next_buffer
               |          
               |--19.58%--read_stream_look_ahead
               |          |          
               |           --16.79%--read_stream_start_pending_read
               |                     StartReadBuffers
               |                     StartReadBuffersImpl
               |                     PinBufferForBlock
               |                     |          
               |                     |--13.99%--BufferAlloc
               |                     |          |          
               |                     |          |--5.59%--BufTableInsert
               |                     |          |          hash_search_with_hash_value
               |                     |          |          |          
               |                     |          |           --2.80%--get_hash_entry
               |                     |          |                     tas
               |                     |          |          
               |                     |          |--2.81%--BufTableLookup
               |                     |          |          hash_search_with_hash_value
               |                     |          |          hash_initial_lookup
               |                     |          |          
               |                     |          |--2.80%--GetVictimBuffer
               |                     |          |          PinBuffer_Locked
               |                     |          |          
               |                     |           --2.80%--LockBufHdr
               |                     |                     pg_atomic_fetch_or_u32
               |                     |                     pg_atomic_fetch_or_u32_impl
               |                     |          
               |                      --2.80%--BufferDescriptorGetBuffer
               |          
                --13.96%--WaitReadBuffers
                          |          
                          |--11.17%--smgrreadv
                          |          mdreadv
                          |          FileReadV
                          |          pg_preadv
                          |          |          
                          |          |--5.59%--__GI_preadv64 (inlined)
                          |          |          entry_SYSCALL_64_after_hwframe
                          |          |          do_syscall_64
                          |          |          x64_sys_call
                          |          |          __x64_sys_preadv
                          |          |          vfs_readv
                          |          |          do_iter_readv_writev
                          |          |          ext4_file_read_iter
                          |          |          generic_file_read_iter
                          |          |          filemap_read
                          |          |          copy_page_to_iter
                          |          |          _copy_to_iter
                          |          |          
                          |           --5.58%--__libc_pread64 (inlined)
                          |                     entry_SYSCALL_64_after_hwframe
                          |                     do_syscall_64
                          |                     x64_sys_call
                          |                     __x64_sys_pread64
                          |                     vfs_read
                          |                     ext4_file_read_iter
                          |                     generic_file_read_iter
                          |                     filemap_read
                          |                     copy_page_to_iter
                          |                     _copy_to_iter
                          |                     |          
                          |                      --2.79%--asm_sysvec_apic_timer_interrupt
                          |                                sysvec_apic_timer_interrupt
                          |          
                           --2.79%--BufferGetBlock

    33.54%     0.00%  postgres  [.] read_stream_next_buffer
            |
            ---read_stream_next_buffer
               |          
               |--19.58%--read_stream_look_ahead
               |          |          
               |           --16.79%--read_stream_start_pending_read
               |                     StartReadBuffers
               |                     StartReadBuffersImpl
               |                     PinBufferForBlock
               |                     |          
               |                     |--13.99%--BufferAlloc
               |                     |          |          
               |                     |          |--5.59%--BufTableInsert
               |                     |          |          hash_search_with_hash_value
               |                     |          |          |          
               |                     |          |           --2.80%--get_hash_entry
               |                     |          |                     tas
               |                     |          |          
               |                     |          |--2.81%--BufTableLookup
               |                     |          |          hash_search_with_hash_value
               |                     |          |          hash_initial_lookup
               |                     |          |          
               |                     |          |--2.80%--GetVictimBuffer
               |                     |          |          PinBuffer_Locked
               |                     |          |          
               |                     |           --2.80%--LockBufHdr
               |                     |                     pg_atomic_fetch_or_u32
               |                     |                     pg_atomic_fetch_or_u32_impl
               |                     |          
               |                      --2.80%--BufferDescriptorGetBuffer
               |          
                --13.96%--WaitReadBuffers
                          |          
                          |--11.17%--smgrreadv
                          |          mdreadv
                          |          FileReadV
                          |          pg_preadv
                          |          |          
                          |          |--5.59%--__GI_preadv64 (inlined)
                          |          |          entry_SYSCALL_64_after_hwframe
                          |          |          do_syscall_64
                          |          |          x64_sys_call
                          |          |          __x64_sys_preadv
                          |          |          vfs_readv
                          |          |          do_iter_readv_writev
                          |          |          ext4_file_read_iter
                          |          |          generic_file_read_iter
                          |          |          filemap_read
                          |          |          copy_page_to_iter
                          |          |          _copy_to_iter
                          |          |          
                          |           --5.58%--__libc_pread64 (inlined)
                          |                     entry_SYSCALL_64_after_hwframe
                          |                     do_syscall_64
                          |                     x64_sys_call
                          |                     __x64_sys_pread64
                          |                     vfs_read
                          |                     ext4_file_read_iter
                          |                     generic_file_read_iter
                          |                     filemap_read
                          |                     copy_page_to_iter
                          |                     _copy_to_iter
                          |                     |          
                          |                      --2.79%--asm_sysvec_apic_timer_interrupt
                          |                                sysvec_apic_timer_interrupt
                          |          
                           --2.79%--BufferGetBlock

    19.58%     2.79%  postgres  [.] read_stream_look_ahead
            |          
            |--16.79%--read_stream_look_ahead
            |          read_stream_start_pending_read
            |          StartReadBuffers
            |          StartReadBuffersImpl
            |          PinBufferForBlock
            |          |          
            |          |--13.99%--BufferAlloc
            |          |          |          
            |          |          |--5.59%--BufTableInsert
            |          |          |          hash_search_with_hash_value
            |          |          |          |          
            |          |          |           --2.80%--get_hash_entry
            |          |          |                     tas
            |          |          |          
            |          |          |--2.81%--BufTableLookup
            |          |          |          hash_search_with_hash_value
            |          |          |          hash_initial_lookup
            |          |          |          
            |          |          |--2.80%--GetVictimBuffer
            |          |          |          PinBuffer_Locked
            |          |          |          
            |          |           --2.80%--LockBufHdr
            |          |                     pg_atomic_fetch_or_u32
            |          |                     pg_atomic_fetch_or_u32_impl
            |          |          
            |           --2.80%--BufferDescriptorGetBuffer
            |          
             --2.79%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       table_scan_getnextslot
                       heap_getnextslot
                       heapgettup_pagemode
                       heap_fetch_next_buffer
                       read_stream_next_buffer
                       read_stream_look_ahead

    16.79%     0.00%  postgres  [.] read_stream_start_pending_read
            |
            ---read_stream_start_pending_read
               StartReadBuffers
               StartReadBuffersImpl
               PinBufferForBlock
               |          
               |--13.99%--BufferAlloc
               |          |          
               |          |--5.59%--BufTableInsert
               |          |          hash_search_with_hash_value
               |          |          |          
               |          |           --2.80%--get_hash_entry
               |          |                     tas
               |          |          
               |          |--2.81%--BufTableLookup
               |          |          hash_search_with_hash_value
               |          |          hash_initial_lookup
               |          |          
               |          |--2.80%--GetVictimBuffer
               |          |          PinBuffer_Locked
               |          |          
               |           --2.80%--LockBufHdr
               |                     pg_atomic_fetch_or_u32
               |                     pg_atomic_fetch_or_u32_impl
               |          
                --2.80%--BufferDescriptorGetBuffer

    16.79%     0.00%  postgres  [.] StartReadBuffers
            |
            ---StartReadBuffers
               StartReadBuffersImpl
               PinBufferForBlock
               |          
               |--13.99%--BufferAlloc
               |          |          
               |          |--5.59%--BufTableInsert
               |          |          hash_search_with_hash_value
               |          |          |          
               |          |           --2.80%--get_hash_entry
               |          |                     tas
               |          |          
               |          |--2.81%--BufTableLookup
               |          |          hash_search_with_hash_value
               |          |          hash_initial_lookup
               |          |          
               |          |--2.80%--GetVictimBuffer
               |          |          PinBuffer_Locked
               |          |          
               |           --2.80%--LockBufHdr
               |                     pg_atomic_fetch_or_u32
               |                     pg_atomic_fetch_or_u32_impl
               |          
                --2.80%--BufferDescriptorGetBuffer

    16.79%     0.00%  postgres  [.] StartReadBuffersImpl
            |
            ---StartReadBuffersImpl
               PinBufferForBlock
               |          
               |--13.99%--BufferAlloc
               |          |          
               |          |--5.59%--BufTableInsert
               |          |          hash_search_with_hash_value
               |          |          |          
               |          |           --2.80%--get_hash_entry
               |          |                     tas
               |          |          
               |          |--2.81%--BufTableLookup
               |          |          hash_search_with_hash_value
               |          |          hash_initial_lookup
               |          |          
               |          |--2.80%--GetVictimBuffer
               |          |          PinBuffer_Locked
               |          |          
               |           --2.80%--LockBufHdr
               |                     pg_atomic_fetch_or_u32
               |                     pg_atomic_fetch_or_u32_impl
               |          
                --2.80%--BufferDescriptorGetBuffer

    16.79%     0.00%  postgres  [.] PinBufferForBlock
            |
            ---PinBufferForBlock
               |          
               |--13.99%--BufferAlloc
               |          |          
               |          |--5.59%--BufTableInsert
               |          |          hash_search_with_hash_value
               |          |          |          
               |          |           --2.80%--get_hash_entry
               |          |                     tas
               |          |          
               |          |--2.81%--BufTableLookup
               |          |          hash_search_with_hash_value
               |          |          hash_initial_lookup
               |          |          
               |          |--2.80%--GetVictimBuffer
               |          |          PinBuffer_Locked
               |          |          
               |           --2.80%--LockBufHdr
               |                     pg_atomic_fetch_or_u32
               |                     pg_atomic_fetch_or_u32_impl
               |          
                --2.80%--BufferDescriptorGetBuffer

    13.99%     0.00%  postgres  [.] BufferAlloc
            |
            ---BufferAlloc
               |          
               |--5.59%--BufTableInsert
               |          hash_search_with_hash_value
               |          |          
               |           --2.80%--get_hash_entry
               |                     tas
               |          
               |--2.81%--BufTableLookup
               |          hash_search_with_hash_value
               |          hash_initial_lookup
               |          
               |--2.80%--GetVictimBuffer
               |          PinBuffer_Locked
               |          
                --2.80%--LockBufHdr
                          pg_atomic_fetch_or_u32
                          pg_atomic_fetch_or_u32_impl

     8.57%     8.57%  postgres  [.] HeapTupleSatisfiesMVCC
            |          
            |--5.77%--_start
            |          __libc_start_main_impl (inlined)
            |          __libc_start_call_main
            |          main
            |          PostmasterMain
            |          ServerLoop
            |          BackendStartup
            |          postmaster_child_launch
            |          BackendMain
            |          PostgresMain
            |          exec_simple_query
            |          PortalRun
            |          PortalRunMulti
            |          PortalRunUtility
            |          ProcessUtility
            |          standard_ProcessUtility
            |          ExecVacuum
            |          vacuum
            |          vac_update_datfrozenxid
            |          systable_getnext
            |          table_scan_getnextslot
            |          heap_getnextslot
            |          heapgettup_pagemode
            |          heap_prepare_pagescan
            |          page_collect_tuples
            |          HeapTupleSatisfiesVisibility
            |          HeapTupleSatisfiesMVCC
            |          
             --2.80%--0x7ffe6151033f
                       HeapTupleSatisfiesMVCC

     8.56%     0.00%  postgres  [.] HeapTupleSatisfiesVisibility
            |
            ---HeapTupleSatisfiesVisibility
               |          
               |--5.77%--HeapTupleSatisfiesMVCC
               |          
                --2.79%--asm_sysvec_apic_timer_interrupt
                          sysvec_apic_timer_interrupt
                          __sysvec_apic_timer_interrupt
                          hrtimer_interrupt
                          __hrtimer_run_queues
                          tick_nohz_highres_handler
                          tick_sched_handle
                          update_process_times
                          scheduler_tick
                          task_tick_fair
                          update_curr
                          __calc_delta.constprop.0

     8.43%     5.64%  postgres  [.] TransactionIdPrecedes
            |          
            |--5.64%--_start
            |          __libc_start_main_impl (inlined)
            |          __libc_start_call_main
            |          main
            |          PostmasterMain
            |          ServerLoop
            |          BackendStartup
            |          postmaster_child_launch
            |          BackendMain
            |          PostgresMain
            |          exec_simple_query
            |          PortalRun
            |          PortalRunMulti
            |          PortalRunUtility
            |          ProcessUtility
            |          standard_ProcessUtility
            |          ExecVacuum
            |          vacuum
            |          vac_update_datfrozenxid
            |          TransactionIdPrecedes
            |          
             --2.79%--TransactionIdPrecedes
                       asm_sysvec_apic_timer_interrupt
                       sysvec_apic_timer_interrupt
                       __sysvec_apic_timer_interrupt
                       hrtimer_interrupt
                       __hrtimer_run_queues
                       tick_nohz_highres_handler
                       tick_sched_handle
                       update_process_times
                       rcu_sched_clock_irq
                       rcu_pending

     8.40%     2.79%  postgres  [.] hash_search_with_hash_value
            |          
            |--5.61%--hash_search_with_hash_value
            |          |          
            |          |--2.81%--hash_initial_lookup
            |          |          
            |           --2.80%--get_hash_entry
            |                     tas
            |          
             --2.79%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       table_scan_getnextslot
                       heap_getnextslot
                       heapgettup_pagemode
                       heap_fetch_next_buffer
                       read_stream_next_buffer
                       read_stream_look_ahead
                       read_stream_start_pending_read
                       StartReadBuffers
                       StartReadBuffersImpl
                       PinBufferForBlock
                       BufferAlloc
                       BufTableInsert
                       hash_search_with_hash_value

     5.77%     2.96%  postgres  [.] ItemPointerSet
            |          
            |--2.96%--_start
            |          __libc_start_main_impl (inlined)
            |          __libc_start_call_main
            |          main
            |          PostmasterMain
            |          ServerLoop
            |          BackendStartup
            |          postmaster_child_launch
            |          BackendMain
            |          PostgresMain
            |          exec_simple_query
            |          PortalRun
            |          PortalRunMulti
            |          PortalRunUtility
            |          ProcessUtility
            |          standard_ProcessUtility
            |          ExecVacuum
            |          vacuum
            |          vac_update_datfrozenxid
            |          systable_getnext
            |          table_scan_getnextslot
            |          heap_getnextslot
            |          heapgettup_pagemode
            |          heap_prepare_pagescan
            |          page_collect_tuples
            |          ItemPointerSet
            |          
             --2.82%--ItemPointerSet
                       BlockIdSet

     5.59%     0.00%  postgres  [.] BufTableInsert
            |
            ---BufTableInsert
               hash_search_with_hash_value
               |          
                --2.80%--get_hash_entry
                          tas

     5.57%     2.79%  postgres  [.] HandleConcurrentAbort
            |          
            |--2.79%--0x7ffe6151051f
            |          HandleConcurrentAbort
            |          
             --2.79%--HandleConcurrentAbort
                       asm_sysvec_apic_timer_interrupt
                       sysvec_apic_timer_interrupt
                       __sysvec_apic_timer_interrupt
                       hrtimer_interrupt
                       __hrtimer_run_queues
                       tick_nohz_highres_handler
                       tick_sched_handle
                       update_process_times
                       scheduler_tick
                       perf_event_task_tick
                       perf_adjust_freq_unthr_context

     2.82%     2.82%  postgres  [.] BlockIdSet
            |
            ---_start
               __libc_start_main_impl (inlined)
               __libc_start_call_main
               main
               PostmasterMain
               ServerLoop
               BackendStartup
               postmaster_child_launch
               BackendMain
               PostgresMain
               exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               systable_getnext
               table_scan_getnextslot
               heap_getnextslot
               heapgettup_pagemode
               heap_prepare_pagescan
               page_collect_tuples
               ItemPointerSet
               BlockIdSet

     2.81%     2.81%  postgres  [.] hash_initial_lookup
            |
            ---_start
               __libc_start_main_impl (inlined)
               __libc_start_call_main
               main
               PostmasterMain
               ServerLoop
               BackendStartup
               postmaster_child_launch
               BackendMain
               PostgresMain
               exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               systable_getnext
               table_scan_getnextslot
               heap_getnextslot
               heapgettup_pagemode
               heap_fetch_next_buffer
               read_stream_next_buffer
               read_stream_look_ahead
               read_stream_start_pending_read
               StartReadBuffers
               StartReadBuffersImpl
               PinBufferForBlock
               BufferAlloc
               BufTableLookup
               hash_search_with_hash_value
               hash_initial_lookup

     2.81%     0.00%  postgres  [.] BufTableLookup
            |
            ---BufTableLookup
               hash_search_with_hash_value
               hash_initial_lookup

     2.80%     2.80%  postgres  [.] BufferDescriptorGetBuffer
            |
            ---_start
               __libc_start_main_impl (inlined)
               __libc_start_call_main
               main
               PostmasterMain
               ServerLoop
               BackendStartup
               postmaster_child_launch
               BackendMain
               PostgresMain
               exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               systable_getnext
               table_scan_getnextslot
               heap_getnextslot
               heapgettup_pagemode
               heap_fetch_next_buffer
               read_stream_next_buffer
               read_stream_look_ahead
               read_stream_start_pending_read
               StartReadBuffers
               StartReadBuffersImpl
               PinBufferForBlock
               BufferDescriptorGetBuffer

     2.80%     2.80%  postgres  [.] PinBuffer_Locked
            |
            ---_start
               __libc_start_main_impl (inlined)
               __libc_start_call_main
               main
               PostmasterMain
               ServerLoop
               BackendStartup
               postmaster_child_launch
               BackendMain
               PostgresMain
               exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               systable_getnext
               table_scan_getnextslot
               heap_getnextslot
               heapgettup_pagemode
               heap_fetch_next_buffer
               read_stream_next_buffer
               read_stream_look_ahead
               read_stream_start_pending_read
               StartReadBuffers
               StartReadBuffersImpl
               PinBufferForBlock
               BufferAlloc
               GetVictimBuffer
               PinBuffer_Locked

     2.80%     0.00%  postgres  [.] GetVictimBuffer
            |
            ---GetVictimBuffer
               PinBuffer_Locked

     2.80%     2.80%  postgres  [.] tas
            |
            ---_start
               __libc_start_main_impl (inlined)
               __libc_start_call_main
               main
               PostmasterMain
               ServerLoop
               BackendStartup
               postmaster_child_launch
               BackendMain
               PostgresMain
               exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               systable_getnext
               table_scan_getnextslot
               heap_getnextslot
               heapgettup_pagemode
               heap_fetch_next_buffer
               read_stream_next_buffer
               read_stream_look_ahead
               read_stream_start_pending_read
               StartReadBuffers
               StartReadBuffersImpl
               PinBufferForBlock
               BufferAlloc
               BufTableInsert
               hash_search_with_hash_value
               get_hash_entry
               tas

     2.80%     0.00%  postgres  [.] get_hash_entry
            |
            ---get_hash_entry
               tas

     2.80%     2.80%  postgres  [.] pg_atomic_fetch_or_u32_impl
            |
            ---_start
               __libc_start_main_impl (inlined)
               __libc_start_call_main
               main
               PostmasterMain
               ServerLoop
               BackendStartup
               postmaster_child_launch
               BackendMain
               PostgresMain
               exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               systable_getnext
               table_scan_getnextslot
               heap_getnextslot
               heapgettup_pagemode
               heap_fetch_next_buffer
               read_stream_next_buffer
               read_stream_look_ahead
               read_stream_start_pending_read
               StartReadBuffers
               StartReadBuffersImpl
               PinBufferForBlock
               BufferAlloc
               LockBufHdr
               pg_atomic_fetch_or_u32
               pg_atomic_fetch_or_u32_impl

     2.80%     0.00%  postgres  [.] LockBufHdr
            |
            ---LockBufHdr
               pg_atomic_fetch_or_u32
               pg_atomic_fetch_or_u32_impl

     2.80%     0.00%  postgres  [.] pg_atomic_fetch_or_u32
            |
            ---pg_atomic_fetch_or_u32
               pg_atomic_fetch_or_u32_impl

     2.80%     0.00%  postgres  [.] 0x00007ffe6151033f
            |
            ---0x7ffe6151033f
               HeapTupleSatisfiesMVCC

     2.79%     2.79%  postgres  [.] LockBuffer
            |
            ---_start
               __libc_start_main_impl (inlined)
               __libc_start_call_main
               main
               PostmasterMain
               ServerLoop
               BackendStartup
               postmaster_child_launch
               BackendMain
               PostgresMain
               exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               systable_getnext
               table_scan_getnextslot
               heap_getnextslot
               heapgettup_pagemode
               LockBuffer

     2.79%     2.79%  postgres  [.] BufferGetBlock
            |
            ---_start
               __libc_start_main_impl (inlined)
               __libc_start_call_main
               main
               PostmasterMain
               ServerLoop
               BackendStartup
               postmaster_child_launch
               BackendMain
               PostgresMain
               exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               systable_getnext
               table_scan_getnextslot
               heap_getnextslot
               heapgettup_pagemode
               heap_fetch_next_buffer
               read_stream_next_buffer
               WaitReadBuffers
               BufferGetBlock

     2.79%     0.00%  postgres  [.] 0x00007ffe6151051f
            |
            ---0x7ffe6151051f
               HandleConcurrentAbort

     1.49%     1.49%  postgres  [.] ExecStoreBufferHeapTuple
            |
            ---_start
               __libc_start_main_impl (inlined)
               __libc_start_call_main
               main
               PostmasterMain
               ServerLoop
               BackendStartup
               postmaster_child_launch
               BackendMain
               PostgresMain
               exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               systable_getnext
               table_scan_getnextslot
               heap_getnextslot
               ExecStoreBufferHeapTuple

     0.34%     0.34%  postgres  [.] PageGetItemId
     0.34%     0.00%  postgres  [.] 0x00007ffe615103af


# Samples: 12K of event 'cpu_core/cycles/P'
# Event count (approx.): 4321766353
#
# Children      Self  Command   Symbol                                   
# ........  ........  ........  .........................................
#
    91.13%     0.00%  postgres  [.] _start
            |
            ---_start
               __libc_start_main_impl (inlined)
               __libc_start_call_main
               main
               PostmasterMain
               ServerLoop
               BackendStartup
               postmaster_child_launch
               BackendMain
               PostgresMain
               exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               |          
               |--81.42%--systable_getnext
               |          |          
               |          |--76.61%--table_scan_getnextslot
               |          |          |          
               |          |           --73.16%--heap_getnextslot
               |          |                     |          
               |          |                     |--57.95%--heapgettup_pagemode
               |          |                     |          |          
               |          |                     |          |--30.65%--heap_fetch_next_buffer
               |          |                     |          |          |          
               |          |                     |          |          |--29.43%--read_stream_next_buffer
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--17.13%--WaitReadBuffers
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--13.62%--smgrreadv
               |          |                     |          |          |          |          |          |          
               |          |                     |          |          |          |          |           --13.58%--mdreadv
               |          |                     |          |          |          |          |                     |          
               |          |                     |          |          |          |          |                      --13.47%--FileReadV
               |          |                     |          |          |          |          |                                |          
               |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
               |          |                     |          |          |          |          |                                           |          |          
               |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                           |                     do_syscall_64
               |          |                     |          |          |          |          |                                           |                     |          
               |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
               |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
               |          |                     |          |          |          |          |                                           |                                |          
               |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
               |          |                     |          |          |          |          |                                           |                                           |          
               |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      |          
               |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
               |          |                     |          |          |          |          |                                           |                                                                 |          
               |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
               |          |                     |          |          |          |          |                                           |                                                                            |          
               |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
               |          |                     |          |          |          |          |                                                      |          
               |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                                                 |          
               |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
               |          |                     |          |          |          |          |                                                                            |          
               |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
               |          |                     |          |          |          |          |                                                                                       |          
               |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
               |          |                     |          |          |          |          |                                                                                                  |          
               |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
               |          |                     |          |          |          |          |                                                                                                             |          
               |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
               |          |                     |          |          |          |          |                                                                                                                        |          
               |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   |          
               |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
               |          |                     |          |          |          |          |                                                                                                                                              |          
               |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
               |          |                     |          |          |          |          |                                                                                                                                                         |          
               |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --1.24%--StartBufferIO
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
               |          |                     |          |          |          |          
               |          |                     |          |          |           --11.90%--read_stream_look_ahead
               |          |                     |          |          |                     |          
               |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
               |          |                     |          |          |                                |          
               |          |                     |          |          |                                 --11.30%--StartReadBuffers
               |          |                     |          |          |                                           StartReadBuffersImpl
               |          |                     |          |          |                                           |          
               |          |                     |          |          |                                            --11.17%--PinBufferForBlock
               |          |                     |          |          |                                                      |          
               |          |                     |          |          |                                                       --10.94%--BufferAlloc
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
               |          |                     |          |          |                                                                 |                     |                     |          
               |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
               |          |                     |          |          |                                                                 |                     |                                |          
               |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
               |          |                     |          |          |                                                                 |                                |          
               |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
               |          |                     |          |          |                                                                            |          
               |          |                     |          |          |                                                                             --0.55%--hash_search
               |          |                     |          |          |          
               |          |                     |          |           --0.84%--ReleaseBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.79%--UnpinBuffer
               |          |                     |          |                                |          
               |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
               |          |                     |          |          
               |          |                     |          |--16.44%--heap_prepare_pagescan
               |          |                     |          |          |          
               |          |                     |          |          |--14.71%--page_collect_tuples
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--1.91%--ItemPointerSet
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --0.81%--BlockIdSet
               |          |                     |          |          |          |          
               |          |                     |          |          |           --0.80%--PageGetItemId
               |          |                     |          |          |          
               |          |                     |          |           --1.11%--LockBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.55%--LWLockAcquire
               |          |                     |          |          
               |          |                     |          |--2.54%--ItemPointerSet
               |          |                     |          |          |          
               |          |                     |          |           --0.81%--BlockIdSet
               |          |                     |          |          
               |          |                     |          |--1.13%--BufferGetPage
               |          |                     |          |          |          
               |          |                     |          |           --0.74%--BufferGetBlock
               |          |                     |          |          
               |          |                     |          |--0.83%--PageGetItemId
               |          |                     |          |          
               |          |                     |           --0.64%--PageGetItem
               |          |                     |          
               |          |                      --9.51%--ExecStoreBufferHeapTuple
               |          |                                |          
               |          |                                 --7.65%--tts_buffer_heap_store_tuple
               |          |                                           |          
               |          |                                           |--2.47%--IncrBufferRefCount
               |          |                                           |          |          
               |          |                                           |           --2.11%--GetPrivateRefCountEntry
               |          |                                           |                     |          
               |          |                                           |                      --1.54%--hash_search
               |          |                                           |                                |          
               |          |                                           |                                |--0.87%--hash_search_with_hash_value
               |          |                                           |                                |          
               |          |                                           |                                 --0.57%--uint32_hash
               |          |                                           |                                           |          
               |          |                                           |                                            --0.54%--hash_bytes_uint32
               |          |                                           |          
               |          |                                            --2.04%--ReleaseBuffer
               |          |                                                      |          
               |          |                                                       --1.95%--UnpinBuffer
               |          |                                                                 |          
               |          |                                                                 |--1.25%--UnpinBufferNoOwner
               |          |                                                                 |          
               |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
               |          |                                                                            |          
               |          |                                                                             --0.56%--ResourceOwnerForget
               |          |          
               |           --1.83%--ExecFetchSlotHeapTuple
               |                     |          
               |                      --0.83%--tts_buffer_heap_get_heap_tuple
               |          
               |--2.20%--TransactionIdPrecedes
               |          
                --1.18%--MultiXactIdPrecedes

    91.13%     0.00%  postgres  [.] __libc_start_main_impl (inlined)
            |
            ---__libc_start_main_impl (inlined)
               __libc_start_call_main
               main
               PostmasterMain
               ServerLoop
               BackendStartup
               postmaster_child_launch
               BackendMain
               PostgresMain
               exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               |          
               |--81.42%--systable_getnext
               |          |          
               |          |--76.61%--table_scan_getnextslot
               |          |          |          
               |          |           --73.16%--heap_getnextslot
               |          |                     |          
               |          |                     |--57.95%--heapgettup_pagemode
               |          |                     |          |          
               |          |                     |          |--30.65%--heap_fetch_next_buffer
               |          |                     |          |          |          
               |          |                     |          |          |--29.43%--read_stream_next_buffer
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--17.13%--WaitReadBuffers
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--13.62%--smgrreadv
               |          |                     |          |          |          |          |          |          
               |          |                     |          |          |          |          |           --13.58%--mdreadv
               |          |                     |          |          |          |          |                     |          
               |          |                     |          |          |          |          |                      --13.47%--FileReadV
               |          |                     |          |          |          |          |                                |          
               |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
               |          |                     |          |          |          |          |                                           |          |          
               |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                           |                     do_syscall_64
               |          |                     |          |          |          |          |                                           |                     |          
               |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
               |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
               |          |                     |          |          |          |          |                                           |                                |          
               |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
               |          |                     |          |          |          |          |                                           |                                           |          
               |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      |          
               |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
               |          |                     |          |          |          |          |                                           |                                                                 |          
               |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
               |          |                     |          |          |          |          |                                           |                                                                            |          
               |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
               |          |                     |          |          |          |          |                                                      |          
               |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                                                 |          
               |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
               |          |                     |          |          |          |          |                                                                            |          
               |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
               |          |                     |          |          |          |          |                                                                                       |          
               |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
               |          |                     |          |          |          |          |                                                                                                  |          
               |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
               |          |                     |          |          |          |          |                                                                                                             |          
               |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
               |          |                     |          |          |          |          |                                                                                                                        |          
               |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   |          
               |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
               |          |                     |          |          |          |          |                                                                                                                                              |          
               |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
               |          |                     |          |          |          |          |                                                                                                                                                         |          
               |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --1.24%--StartBufferIO
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
               |          |                     |          |          |          |          
               |          |                     |          |          |           --11.90%--read_stream_look_ahead
               |          |                     |          |          |                     |          
               |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
               |          |                     |          |          |                                |          
               |          |                     |          |          |                                 --11.30%--StartReadBuffers
               |          |                     |          |          |                                           StartReadBuffersImpl
               |          |                     |          |          |                                           |          
               |          |                     |          |          |                                            --11.17%--PinBufferForBlock
               |          |                     |          |          |                                                      |          
               |          |                     |          |          |                                                       --10.94%--BufferAlloc
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
               |          |                     |          |          |                                                                 |                     |                     |          
               |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
               |          |                     |          |          |                                                                 |                     |                                |          
               |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
               |          |                     |          |          |                                                                 |                                |          
               |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
               |          |                     |          |          |                                                                            |          
               |          |                     |          |          |                                                                             --0.55%--hash_search
               |          |                     |          |          |          
               |          |                     |          |           --0.84%--ReleaseBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.79%--UnpinBuffer
               |          |                     |          |                                |          
               |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
               |          |                     |          |          
               |          |                     |          |--16.44%--heap_prepare_pagescan
               |          |                     |          |          |          
               |          |                     |          |          |--14.71%--page_collect_tuples
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--1.91%--ItemPointerSet
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --0.81%--BlockIdSet
               |          |                     |          |          |          |          
               |          |                     |          |          |           --0.80%--PageGetItemId
               |          |                     |          |          |          
               |          |                     |          |           --1.11%--LockBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.55%--LWLockAcquire
               |          |                     |          |          
               |          |                     |          |--2.54%--ItemPointerSet
               |          |                     |          |          |          
               |          |                     |          |           --0.81%--BlockIdSet
               |          |                     |          |          
               |          |                     |          |--1.13%--BufferGetPage
               |          |                     |          |          |          
               |          |                     |          |           --0.74%--BufferGetBlock
               |          |                     |          |          
               |          |                     |          |--0.83%--PageGetItemId
               |          |                     |          |          
               |          |                     |           --0.64%--PageGetItem
               |          |                     |          
               |          |                      --9.51%--ExecStoreBufferHeapTuple
               |          |                                |          
               |          |                                 --7.65%--tts_buffer_heap_store_tuple
               |          |                                           |          
               |          |                                           |--2.47%--IncrBufferRefCount
               |          |                                           |          |          
               |          |                                           |           --2.11%--GetPrivateRefCountEntry
               |          |                                           |                     |          
               |          |                                           |                      --1.54%--hash_search
               |          |                                           |                                |          
               |          |                                           |                                |--0.87%--hash_search_with_hash_value
               |          |                                           |                                |          
               |          |                                           |                                 --0.57%--uint32_hash
               |          |                                           |                                           |          
               |          |                                           |                                            --0.54%--hash_bytes_uint32
               |          |                                           |          
               |          |                                            --2.04%--ReleaseBuffer
               |          |                                                      |          
               |          |                                                       --1.95%--UnpinBuffer
               |          |                                                                 |          
               |          |                                                                 |--1.25%--UnpinBufferNoOwner
               |          |                                                                 |          
               |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
               |          |                                                                            |          
               |          |                                                                             --0.56%--ResourceOwnerForget
               |          |          
               |           --1.83%--ExecFetchSlotHeapTuple
               |                     |          
               |                      --0.83%--tts_buffer_heap_get_heap_tuple
               |          
               |--2.20%--TransactionIdPrecedes
               |          
                --1.18%--MultiXactIdPrecedes

    91.13%     0.00%  postgres  [.] __libc_start_call_main
            |
            ---__libc_start_call_main
               main
               PostmasterMain
               ServerLoop
               BackendStartup
               postmaster_child_launch
               BackendMain
               PostgresMain
               exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               |          
               |--81.42%--systable_getnext
               |          |          
               |          |--76.61%--table_scan_getnextslot
               |          |          |          
               |          |           --73.16%--heap_getnextslot
               |          |                     |          
               |          |                     |--57.95%--heapgettup_pagemode
               |          |                     |          |          
               |          |                     |          |--30.65%--heap_fetch_next_buffer
               |          |                     |          |          |          
               |          |                     |          |          |--29.43%--read_stream_next_buffer
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--17.13%--WaitReadBuffers
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--13.62%--smgrreadv
               |          |                     |          |          |          |          |          |          
               |          |                     |          |          |          |          |           --13.58%--mdreadv
               |          |                     |          |          |          |          |                     |          
               |          |                     |          |          |          |          |                      --13.47%--FileReadV
               |          |                     |          |          |          |          |                                |          
               |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
               |          |                     |          |          |          |          |                                           |          |          
               |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                           |                     do_syscall_64
               |          |                     |          |          |          |          |                                           |                     |          
               |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
               |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
               |          |                     |          |          |          |          |                                           |                                |          
               |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
               |          |                     |          |          |          |          |                                           |                                           |          
               |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      |          
               |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
               |          |                     |          |          |          |          |                                           |                                                                 |          
               |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
               |          |                     |          |          |          |          |                                           |                                                                            |          
               |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
               |          |                     |          |          |          |          |                                                      |          
               |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                                                 |          
               |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
               |          |                     |          |          |          |          |                                                                            |          
               |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
               |          |                     |          |          |          |          |                                                                                       |          
               |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
               |          |                     |          |          |          |          |                                                                                                  |          
               |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
               |          |                     |          |          |          |          |                                                                                                             |          
               |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
               |          |                     |          |          |          |          |                                                                                                                        |          
               |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   |          
               |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
               |          |                     |          |          |          |          |                                                                                                                                              |          
               |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
               |          |                     |          |          |          |          |                                                                                                                                                         |          
               |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --1.24%--StartBufferIO
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
               |          |                     |          |          |          |          
               |          |                     |          |          |           --11.90%--read_stream_look_ahead
               |          |                     |          |          |                     |          
               |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
               |          |                     |          |          |                                |          
               |          |                     |          |          |                                 --11.30%--StartReadBuffers
               |          |                     |          |          |                                           StartReadBuffersImpl
               |          |                     |          |          |                                           |          
               |          |                     |          |          |                                            --11.17%--PinBufferForBlock
               |          |                     |          |          |                                                      |          
               |          |                     |          |          |                                                       --10.94%--BufferAlloc
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
               |          |                     |          |          |                                                                 |                     |                     |          
               |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
               |          |                     |          |          |                                                                 |                     |                                |          
               |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
               |          |                     |          |          |                                                                 |                                |          
               |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
               |          |                     |          |          |                                                                            |          
               |          |                     |          |          |                                                                             --0.55%--hash_search
               |          |                     |          |          |          
               |          |                     |          |           --0.84%--ReleaseBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.79%--UnpinBuffer
               |          |                     |          |                                |          
               |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
               |          |                     |          |          
               |          |                     |          |--16.44%--heap_prepare_pagescan
               |          |                     |          |          |          
               |          |                     |          |          |--14.71%--page_collect_tuples
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--1.91%--ItemPointerSet
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --0.81%--BlockIdSet
               |          |                     |          |          |          |          
               |          |                     |          |          |           --0.80%--PageGetItemId
               |          |                     |          |          |          
               |          |                     |          |           --1.11%--LockBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.55%--LWLockAcquire
               |          |                     |          |          
               |          |                     |          |--2.54%--ItemPointerSet
               |          |                     |          |          |          
               |          |                     |          |           --0.81%--BlockIdSet
               |          |                     |          |          
               |          |                     |          |--1.13%--BufferGetPage
               |          |                     |          |          |          
               |          |                     |          |           --0.74%--BufferGetBlock
               |          |                     |          |          
               |          |                     |          |--0.83%--PageGetItemId
               |          |                     |          |          
               |          |                     |           --0.64%--PageGetItem
               |          |                     |          
               |          |                      --9.51%--ExecStoreBufferHeapTuple
               |          |                                |          
               |          |                                 --7.65%--tts_buffer_heap_store_tuple
               |          |                                           |          
               |          |                                           |--2.47%--IncrBufferRefCount
               |          |                                           |          |          
               |          |                                           |           --2.11%--GetPrivateRefCountEntry
               |          |                                           |                     |          
               |          |                                           |                      --1.54%--hash_search
               |          |                                           |                                |          
               |          |                                           |                                |--0.87%--hash_search_with_hash_value
               |          |                                           |                                |          
               |          |                                           |                                 --0.57%--uint32_hash
               |          |                                           |                                           |          
               |          |                                           |                                            --0.54%--hash_bytes_uint32
               |          |                                           |          
               |          |                                            --2.04%--ReleaseBuffer
               |          |                                                      |          
               |          |                                                       --1.95%--UnpinBuffer
               |          |                                                                 |          
               |          |                                                                 |--1.25%--UnpinBufferNoOwner
               |          |                                                                 |          
               |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
               |          |                                                                            |          
               |          |                                                                             --0.56%--ResourceOwnerForget
               |          |          
               |           --1.83%--ExecFetchSlotHeapTuple
               |                     |          
               |                      --0.83%--tts_buffer_heap_get_heap_tuple
               |          
               |--2.20%--TransactionIdPrecedes
               |          
                --1.18%--MultiXactIdPrecedes

    91.13%     0.00%  postgres  [.] main
            |
            ---main
               PostmasterMain
               ServerLoop
               BackendStartup
               postmaster_child_launch
               BackendMain
               PostgresMain
               exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               |          
               |--81.42%--systable_getnext
               |          |          
               |          |--76.61%--table_scan_getnextslot
               |          |          |          
               |          |           --73.16%--heap_getnextslot
               |          |                     |          
               |          |                     |--57.95%--heapgettup_pagemode
               |          |                     |          |          
               |          |                     |          |--30.65%--heap_fetch_next_buffer
               |          |                     |          |          |          
               |          |                     |          |          |--29.43%--read_stream_next_buffer
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--17.13%--WaitReadBuffers
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--13.62%--smgrreadv
               |          |                     |          |          |          |          |          |          
               |          |                     |          |          |          |          |           --13.58%--mdreadv
               |          |                     |          |          |          |          |                     |          
               |          |                     |          |          |          |          |                      --13.47%--FileReadV
               |          |                     |          |          |          |          |                                |          
               |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
               |          |                     |          |          |          |          |                                           |          |          
               |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                           |                     do_syscall_64
               |          |                     |          |          |          |          |                                           |                     |          
               |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
               |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
               |          |                     |          |          |          |          |                                           |                                |          
               |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
               |          |                     |          |          |          |          |                                           |                                           |          
               |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      |          
               |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
               |          |                     |          |          |          |          |                                           |                                                                 |          
               |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
               |          |                     |          |          |          |          |                                           |                                                                            |          
               |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
               |          |                     |          |          |          |          |                                                      |          
               |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                                                 |          
               |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
               |          |                     |          |          |          |          |                                                                            |          
               |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
               |          |                     |          |          |          |          |                                                                                       |          
               |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
               |          |                     |          |          |          |          |                                                                                                  |          
               |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
               |          |                     |          |          |          |          |                                                                                                             |          
               |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
               |          |                     |          |          |          |          |                                                                                                                        |          
               |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   |          
               |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
               |          |                     |          |          |          |          |                                                                                                                                              |          
               |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
               |          |                     |          |          |          |          |                                                                                                                                                         |          
               |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --1.24%--StartBufferIO
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
               |          |                     |          |          |          |          
               |          |                     |          |          |           --11.90%--read_stream_look_ahead
               |          |                     |          |          |                     |          
               |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
               |          |                     |          |          |                                |          
               |          |                     |          |          |                                 --11.30%--StartReadBuffers
               |          |                     |          |          |                                           StartReadBuffersImpl
               |          |                     |          |          |                                           |          
               |          |                     |          |          |                                            --11.17%--PinBufferForBlock
               |          |                     |          |          |                                                      |          
               |          |                     |          |          |                                                       --10.94%--BufferAlloc
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
               |          |                     |          |          |                                                                 |                     |                     |          
               |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
               |          |                     |          |          |                                                                 |                     |                                |          
               |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
               |          |                     |          |          |                                                                 |                                |          
               |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
               |          |                     |          |          |                                                                            |          
               |          |                     |          |          |                                                                             --0.55%--hash_search
               |          |                     |          |          |          
               |          |                     |          |           --0.84%--ReleaseBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.79%--UnpinBuffer
               |          |                     |          |                                |          
               |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
               |          |                     |          |          
               |          |                     |          |--16.44%--heap_prepare_pagescan
               |          |                     |          |          |          
               |          |                     |          |          |--14.71%--page_collect_tuples
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--1.91%--ItemPointerSet
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --0.81%--BlockIdSet
               |          |                     |          |          |          |          
               |          |                     |          |          |           --0.80%--PageGetItemId
               |          |                     |          |          |          
               |          |                     |          |           --1.11%--LockBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.55%--LWLockAcquire
               |          |                     |          |          
               |          |                     |          |--2.54%--ItemPointerSet
               |          |                     |          |          |          
               |          |                     |          |           --0.81%--BlockIdSet
               |          |                     |          |          
               |          |                     |          |--1.13%--BufferGetPage
               |          |                     |          |          |          
               |          |                     |          |           --0.74%--BufferGetBlock
               |          |                     |          |          
               |          |                     |          |--0.83%--PageGetItemId
               |          |                     |          |          
               |          |                     |           --0.64%--PageGetItem
               |          |                     |          
               |          |                      --9.51%--ExecStoreBufferHeapTuple
               |          |                                |          
               |          |                                 --7.65%--tts_buffer_heap_store_tuple
               |          |                                           |          
               |          |                                           |--2.47%--IncrBufferRefCount
               |          |                                           |          |          
               |          |                                           |           --2.11%--GetPrivateRefCountEntry
               |          |                                           |                     |          
               |          |                                           |                      --1.54%--hash_search
               |          |                                           |                                |          
               |          |                                           |                                |--0.87%--hash_search_with_hash_value
               |          |                                           |                                |          
               |          |                                           |                                 --0.57%--uint32_hash
               |          |                                           |                                           |          
               |          |                                           |                                            --0.54%--hash_bytes_uint32
               |          |                                           |          
               |          |                                            --2.04%--ReleaseBuffer
               |          |                                                      |          
               |          |                                                       --1.95%--UnpinBuffer
               |          |                                                                 |          
               |          |                                                                 |--1.25%--UnpinBufferNoOwner
               |          |                                                                 |          
               |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
               |          |                                                                            |          
               |          |                                                                             --0.56%--ResourceOwnerForget
               |          |          
               |           --1.83%--ExecFetchSlotHeapTuple
               |                     |          
               |                      --0.83%--tts_buffer_heap_get_heap_tuple
               |          
               |--2.20%--TransactionIdPrecedes
               |          
                --1.18%--MultiXactIdPrecedes

    91.13%     0.00%  postgres  [.] PostmasterMain
            |
            ---PostmasterMain
               ServerLoop
               BackendStartup
               postmaster_child_launch
               BackendMain
               PostgresMain
               exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               |          
               |--81.42%--systable_getnext
               |          |          
               |          |--76.61%--table_scan_getnextslot
               |          |          |          
               |          |           --73.16%--heap_getnextslot
               |          |                     |          
               |          |                     |--57.95%--heapgettup_pagemode
               |          |                     |          |          
               |          |                     |          |--30.65%--heap_fetch_next_buffer
               |          |                     |          |          |          
               |          |                     |          |          |--29.43%--read_stream_next_buffer
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--17.13%--WaitReadBuffers
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--13.62%--smgrreadv
               |          |                     |          |          |          |          |          |          
               |          |                     |          |          |          |          |           --13.58%--mdreadv
               |          |                     |          |          |          |          |                     |          
               |          |                     |          |          |          |          |                      --13.47%--FileReadV
               |          |                     |          |          |          |          |                                |          
               |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
               |          |                     |          |          |          |          |                                           |          |          
               |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                           |                     do_syscall_64
               |          |                     |          |          |          |          |                                           |                     |          
               |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
               |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
               |          |                     |          |          |          |          |                                           |                                |          
               |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
               |          |                     |          |          |          |          |                                           |                                           |          
               |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      |          
               |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
               |          |                     |          |          |          |          |                                           |                                                                 |          
               |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
               |          |                     |          |          |          |          |                                           |                                                                            |          
               |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
               |          |                     |          |          |          |          |                                                      |          
               |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                                                 |          
               |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
               |          |                     |          |          |          |          |                                                                            |          
               |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
               |          |                     |          |          |          |          |                                                                                       |          
               |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
               |          |                     |          |          |          |          |                                                                                                  |          
               |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
               |          |                     |          |          |          |          |                                                                                                             |          
               |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
               |          |                     |          |          |          |          |                                                                                                                        |          
               |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   |          
               |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
               |          |                     |          |          |          |          |                                                                                                                                              |          
               |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
               |          |                     |          |          |          |          |                                                                                                                                                         |          
               |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --1.24%--StartBufferIO
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
               |          |                     |          |          |          |          
               |          |                     |          |          |           --11.90%--read_stream_look_ahead
               |          |                     |          |          |                     |          
               |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
               |          |                     |          |          |                                |          
               |          |                     |          |          |                                 --11.30%--StartReadBuffers
               |          |                     |          |          |                                           StartReadBuffersImpl
               |          |                     |          |          |                                           |          
               |          |                     |          |          |                                            --11.17%--PinBufferForBlock
               |          |                     |          |          |                                                      |          
               |          |                     |          |          |                                                       --10.94%--BufferAlloc
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
               |          |                     |          |          |                                                                 |                     |                     |          
               |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
               |          |                     |          |          |                                                                 |                     |                                |          
               |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
               |          |                     |          |          |                                                                 |                                |          
               |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
               |          |                     |          |          |                                                                            |          
               |          |                     |          |          |                                                                             --0.55%--hash_search
               |          |                     |          |          |          
               |          |                     |          |           --0.84%--ReleaseBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.79%--UnpinBuffer
               |          |                     |          |                                |          
               |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
               |          |                     |          |          
               |          |                     |          |--16.44%--heap_prepare_pagescan
               |          |                     |          |          |          
               |          |                     |          |          |--14.71%--page_collect_tuples
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--1.91%--ItemPointerSet
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --0.81%--BlockIdSet
               |          |                     |          |          |          |          
               |          |                     |          |          |           --0.80%--PageGetItemId
               |          |                     |          |          |          
               |          |                     |          |           --1.11%--LockBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.55%--LWLockAcquire
               |          |                     |          |          
               |          |                     |          |--2.54%--ItemPointerSet
               |          |                     |          |          |          
               |          |                     |          |           --0.81%--BlockIdSet
               |          |                     |          |          
               |          |                     |          |--1.13%--BufferGetPage
               |          |                     |          |          |          
               |          |                     |          |           --0.74%--BufferGetBlock
               |          |                     |          |          
               |          |                     |          |--0.83%--PageGetItemId
               |          |                     |          |          
               |          |                     |           --0.64%--PageGetItem
               |          |                     |          
               |          |                      --9.51%--ExecStoreBufferHeapTuple
               |          |                                |          
               |          |                                 --7.65%--tts_buffer_heap_store_tuple
               |          |                                           |          
               |          |                                           |--2.47%--IncrBufferRefCount
               |          |                                           |          |          
               |          |                                           |           --2.11%--GetPrivateRefCountEntry
               |          |                                           |                     |          
               |          |                                           |                      --1.54%--hash_search
               |          |                                           |                                |          
               |          |                                           |                                |--0.87%--hash_search_with_hash_value
               |          |                                           |                                |          
               |          |                                           |                                 --0.57%--uint32_hash
               |          |                                           |                                           |          
               |          |                                           |                                            --0.54%--hash_bytes_uint32
               |          |                                           |          
               |          |                                            --2.04%--ReleaseBuffer
               |          |                                                      |          
               |          |                                                       --1.95%--UnpinBuffer
               |          |                                                                 |          
               |          |                                                                 |--1.25%--UnpinBufferNoOwner
               |          |                                                                 |          
               |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
               |          |                                                                            |          
               |          |                                                                             --0.56%--ResourceOwnerForget
               |          |          
               |           --1.83%--ExecFetchSlotHeapTuple
               |                     |          
               |                      --0.83%--tts_buffer_heap_get_heap_tuple
               |          
               |--2.20%--TransactionIdPrecedes
               |          
                --1.18%--MultiXactIdPrecedes

    91.13%     0.00%  postgres  [.] ServerLoop
            |
            ---ServerLoop
               BackendStartup
               postmaster_child_launch
               BackendMain
               PostgresMain
               exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               |          
               |--81.42%--systable_getnext
               |          |          
               |          |--76.61%--table_scan_getnextslot
               |          |          |          
               |          |           --73.16%--heap_getnextslot
               |          |                     |          
               |          |                     |--57.95%--heapgettup_pagemode
               |          |                     |          |          
               |          |                     |          |--30.65%--heap_fetch_next_buffer
               |          |                     |          |          |          
               |          |                     |          |          |--29.43%--read_stream_next_buffer
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--17.13%--WaitReadBuffers
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--13.62%--smgrreadv
               |          |                     |          |          |          |          |          |          
               |          |                     |          |          |          |          |           --13.58%--mdreadv
               |          |                     |          |          |          |          |                     |          
               |          |                     |          |          |          |          |                      --13.47%--FileReadV
               |          |                     |          |          |          |          |                                |          
               |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
               |          |                     |          |          |          |          |                                           |          |          
               |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                           |                     do_syscall_64
               |          |                     |          |          |          |          |                                           |                     |          
               |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
               |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
               |          |                     |          |          |          |          |                                           |                                |          
               |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
               |          |                     |          |          |          |          |                                           |                                           |          
               |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      |          
               |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
               |          |                     |          |          |          |          |                                           |                                                                 |          
               |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
               |          |                     |          |          |          |          |                                           |                                                                            |          
               |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
               |          |                     |          |          |          |          |                                                      |          
               |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                                                 |          
               |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
               |          |                     |          |          |          |          |                                                                            |          
               |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
               |          |                     |          |          |          |          |                                                                                       |          
               |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
               |          |                     |          |          |          |          |                                                                                                  |          
               |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
               |          |                     |          |          |          |          |                                                                                                             |          
               |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
               |          |                     |          |          |          |          |                                                                                                                        |          
               |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   |          
               |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
               |          |                     |          |          |          |          |                                                                                                                                              |          
               |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
               |          |                     |          |          |          |          |                                                                                                                                                         |          
               |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --1.24%--StartBufferIO
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
               |          |                     |          |          |          |          
               |          |                     |          |          |           --11.90%--read_stream_look_ahead
               |          |                     |          |          |                     |          
               |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
               |          |                     |          |          |                                |          
               |          |                     |          |          |                                 --11.30%--StartReadBuffers
               |          |                     |          |          |                                           StartReadBuffersImpl
               |          |                     |          |          |                                           |          
               |          |                     |          |          |                                            --11.17%--PinBufferForBlock
               |          |                     |          |          |                                                      |          
               |          |                     |          |          |                                                       --10.94%--BufferAlloc
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
               |          |                     |          |          |                                                                 |                     |                     |          
               |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
               |          |                     |          |          |                                                                 |                     |                                |          
               |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
               |          |                     |          |          |                                                                 |                                |          
               |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
               |          |                     |          |          |                                                                            |          
               |          |                     |          |          |                                                                             --0.55%--hash_search
               |          |                     |          |          |          
               |          |                     |          |           --0.84%--ReleaseBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.79%--UnpinBuffer
               |          |                     |          |                                |          
               |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
               |          |                     |          |          
               |          |                     |          |--16.44%--heap_prepare_pagescan
               |          |                     |          |          |          
               |          |                     |          |          |--14.71%--page_collect_tuples
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--1.91%--ItemPointerSet
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --0.81%--BlockIdSet
               |          |                     |          |          |          |          
               |          |                     |          |          |           --0.80%--PageGetItemId
               |          |                     |          |          |          
               |          |                     |          |           --1.11%--LockBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.55%--LWLockAcquire
               |          |                     |          |          
               |          |                     |          |--2.54%--ItemPointerSet
               |          |                     |          |          |          
               |          |                     |          |           --0.81%--BlockIdSet
               |          |                     |          |          
               |          |                     |          |--1.13%--BufferGetPage
               |          |                     |          |          |          
               |          |                     |          |           --0.74%--BufferGetBlock
               |          |                     |          |          
               |          |                     |          |--0.83%--PageGetItemId
               |          |                     |          |          
               |          |                     |           --0.64%--PageGetItem
               |          |                     |          
               |          |                      --9.51%--ExecStoreBufferHeapTuple
               |          |                                |          
               |          |                                 --7.65%--tts_buffer_heap_store_tuple
               |          |                                           |          
               |          |                                           |--2.47%--IncrBufferRefCount
               |          |                                           |          |          
               |          |                                           |           --2.11%--GetPrivateRefCountEntry
               |          |                                           |                     |          
               |          |                                           |                      --1.54%--hash_search
               |          |                                           |                                |          
               |          |                                           |                                |--0.87%--hash_search_with_hash_value
               |          |                                           |                                |          
               |          |                                           |                                 --0.57%--uint32_hash
               |          |                                           |                                           |          
               |          |                                           |                                            --0.54%--hash_bytes_uint32
               |          |                                           |          
               |          |                                            --2.04%--ReleaseBuffer
               |          |                                                      |          
               |          |                                                       --1.95%--UnpinBuffer
               |          |                                                                 |          
               |          |                                                                 |--1.25%--UnpinBufferNoOwner
               |          |                                                                 |          
               |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
               |          |                                                                            |          
               |          |                                                                             --0.56%--ResourceOwnerForget
               |          |          
               |           --1.83%--ExecFetchSlotHeapTuple
               |                     |          
               |                      --0.83%--tts_buffer_heap_get_heap_tuple
               |          
               |--2.20%--TransactionIdPrecedes
               |          
                --1.18%--MultiXactIdPrecedes

    91.13%     0.00%  postgres  [.] BackendStartup
            |
            ---BackendStartup
               postmaster_child_launch
               BackendMain
               PostgresMain
               exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               |          
               |--81.42%--systable_getnext
               |          |          
               |          |--76.61%--table_scan_getnextslot
               |          |          |          
               |          |           --73.16%--heap_getnextslot
               |          |                     |          
               |          |                     |--57.95%--heapgettup_pagemode
               |          |                     |          |          
               |          |                     |          |--30.65%--heap_fetch_next_buffer
               |          |                     |          |          |          
               |          |                     |          |          |--29.43%--read_stream_next_buffer
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--17.13%--WaitReadBuffers
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--13.62%--smgrreadv
               |          |                     |          |          |          |          |          |          
               |          |                     |          |          |          |          |           --13.58%--mdreadv
               |          |                     |          |          |          |          |                     |          
               |          |                     |          |          |          |          |                      --13.47%--FileReadV
               |          |                     |          |          |          |          |                                |          
               |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
               |          |                     |          |          |          |          |                                           |          |          
               |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                           |                     do_syscall_64
               |          |                     |          |          |          |          |                                           |                     |          
               |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
               |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
               |          |                     |          |          |          |          |                                           |                                |          
               |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
               |          |                     |          |          |          |          |                                           |                                           |          
               |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      |          
               |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
               |          |                     |          |          |          |          |                                           |                                                                 |          
               |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
               |          |                     |          |          |          |          |                                           |                                                                            |          
               |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
               |          |                     |          |          |          |          |                                                      |          
               |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                                                 |          
               |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
               |          |                     |          |          |          |          |                                                                            |          
               |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
               |          |                     |          |          |          |          |                                                                                       |          
               |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
               |          |                     |          |          |          |          |                                                                                                  |          
               |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
               |          |                     |          |          |          |          |                                                                                                             |          
               |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
               |          |                     |          |          |          |          |                                                                                                                        |          
               |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   |          
               |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
               |          |                     |          |          |          |          |                                                                                                                                              |          
               |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
               |          |                     |          |          |          |          |                                                                                                                                                         |          
               |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --1.24%--StartBufferIO
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
               |          |                     |          |          |          |          
               |          |                     |          |          |           --11.90%--read_stream_look_ahead
               |          |                     |          |          |                     |          
               |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
               |          |                     |          |          |                                |          
               |          |                     |          |          |                                 --11.30%--StartReadBuffers
               |          |                     |          |          |                                           StartReadBuffersImpl
               |          |                     |          |          |                                           |          
               |          |                     |          |          |                                            --11.17%--PinBufferForBlock
               |          |                     |          |          |                                                      |          
               |          |                     |          |          |                                                       --10.94%--BufferAlloc
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
               |          |                     |          |          |                                                                 |                     |                     |          
               |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
               |          |                     |          |          |                                                                 |                     |                                |          
               |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
               |          |                     |          |          |                                                                 |                                |          
               |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
               |          |                     |          |          |                                                                            |          
               |          |                     |          |          |                                                                             --0.55%--hash_search
               |          |                     |          |          |          
               |          |                     |          |           --0.84%--ReleaseBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.79%--UnpinBuffer
               |          |                     |          |                                |          
               |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
               |          |                     |          |          
               |          |                     |          |--16.44%--heap_prepare_pagescan
               |          |                     |          |          |          
               |          |                     |          |          |--14.71%--page_collect_tuples
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--1.91%--ItemPointerSet
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --0.81%--BlockIdSet
               |          |                     |          |          |          |          
               |          |                     |          |          |           --0.80%--PageGetItemId
               |          |                     |          |          |          
               |          |                     |          |           --1.11%--LockBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.55%--LWLockAcquire
               |          |                     |          |          
               |          |                     |          |--2.54%--ItemPointerSet
               |          |                     |          |          |          
               |          |                     |          |           --0.81%--BlockIdSet
               |          |                     |          |          
               |          |                     |          |--1.13%--BufferGetPage
               |          |                     |          |          |          
               |          |                     |          |           --0.74%--BufferGetBlock
               |          |                     |          |          
               |          |                     |          |--0.83%--PageGetItemId
               |          |                     |          |          
               |          |                     |           --0.64%--PageGetItem
               |          |                     |          
               |          |                      --9.51%--ExecStoreBufferHeapTuple
               |          |                                |          
               |          |                                 --7.65%--tts_buffer_heap_store_tuple
               |          |                                           |          
               |          |                                           |--2.47%--IncrBufferRefCount
               |          |                                           |          |          
               |          |                                           |           --2.11%--GetPrivateRefCountEntry
               |          |                                           |                     |          
               |          |                                           |                      --1.54%--hash_search
               |          |                                           |                                |          
               |          |                                           |                                |--0.87%--hash_search_with_hash_value
               |          |                                           |                                |          
               |          |                                           |                                 --0.57%--uint32_hash
               |          |                                           |                                           |          
               |          |                                           |                                            --0.54%--hash_bytes_uint32
               |          |                                           |          
               |          |                                            --2.04%--ReleaseBuffer
               |          |                                                      |          
               |          |                                                       --1.95%--UnpinBuffer
               |          |                                                                 |          
               |          |                                                                 |--1.25%--UnpinBufferNoOwner
               |          |                                                                 |          
               |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
               |          |                                                                            |          
               |          |                                                                             --0.56%--ResourceOwnerForget
               |          |          
               |           --1.83%--ExecFetchSlotHeapTuple
               |                     |          
               |                      --0.83%--tts_buffer_heap_get_heap_tuple
               |          
               |--2.20%--TransactionIdPrecedes
               |          
                --1.18%--MultiXactIdPrecedes

    91.13%     0.00%  postgres  [.] postmaster_child_launch
            |
            ---postmaster_child_launch
               BackendMain
               PostgresMain
               exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               |          
               |--81.42%--systable_getnext
               |          |          
               |          |--76.61%--table_scan_getnextslot
               |          |          |          
               |          |           --73.16%--heap_getnextslot
               |          |                     |          
               |          |                     |--57.95%--heapgettup_pagemode
               |          |                     |          |          
               |          |                     |          |--30.65%--heap_fetch_next_buffer
               |          |                     |          |          |          
               |          |                     |          |          |--29.43%--read_stream_next_buffer
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--17.13%--WaitReadBuffers
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--13.62%--smgrreadv
               |          |                     |          |          |          |          |          |          
               |          |                     |          |          |          |          |           --13.58%--mdreadv
               |          |                     |          |          |          |          |                     |          
               |          |                     |          |          |          |          |                      --13.47%--FileReadV
               |          |                     |          |          |          |          |                                |          
               |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
               |          |                     |          |          |          |          |                                           |          |          
               |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                           |                     do_syscall_64
               |          |                     |          |          |          |          |                                           |                     |          
               |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
               |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
               |          |                     |          |          |          |          |                                           |                                |          
               |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
               |          |                     |          |          |          |          |                                           |                                           |          
               |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      |          
               |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
               |          |                     |          |          |          |          |                                           |                                                                 |          
               |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
               |          |                     |          |          |          |          |                                           |                                                                            |          
               |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
               |          |                     |          |          |          |          |                                                      |          
               |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                                                 |          
               |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
               |          |                     |          |          |          |          |                                                                            |          
               |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
               |          |                     |          |          |          |          |                                                                                       |          
               |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
               |          |                     |          |          |          |          |                                                                                                  |          
               |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
               |          |                     |          |          |          |          |                                                                                                             |          
               |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
               |          |                     |          |          |          |          |                                                                                                                        |          
               |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   |          
               |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
               |          |                     |          |          |          |          |                                                                                                                                              |          
               |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
               |          |                     |          |          |          |          |                                                                                                                                                         |          
               |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --1.24%--StartBufferIO
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
               |          |                     |          |          |          |          
               |          |                     |          |          |           --11.90%--read_stream_look_ahead
               |          |                     |          |          |                     |          
               |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
               |          |                     |          |          |                                |          
               |          |                     |          |          |                                 --11.30%--StartReadBuffers
               |          |                     |          |          |                                           StartReadBuffersImpl
               |          |                     |          |          |                                           |          
               |          |                     |          |          |                                            --11.17%--PinBufferForBlock
               |          |                     |          |          |                                                      |          
               |          |                     |          |          |                                                       --10.94%--BufferAlloc
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
               |          |                     |          |          |                                                                 |                     |                     |          
               |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
               |          |                     |          |          |                                                                 |                     |                                |          
               |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
               |          |                     |          |          |                                                                 |                                |          
               |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
               |          |                     |          |          |                                                                            |          
               |          |                     |          |          |                                                                             --0.55%--hash_search
               |          |                     |          |          |          
               |          |                     |          |           --0.84%--ReleaseBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.79%--UnpinBuffer
               |          |                     |          |                                |          
               |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
               |          |                     |          |          
               |          |                     |          |--16.44%--heap_prepare_pagescan
               |          |                     |          |          |          
               |          |                     |          |          |--14.71%--page_collect_tuples
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--1.91%--ItemPointerSet
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --0.81%--BlockIdSet
               |          |                     |          |          |          |          
               |          |                     |          |          |           --0.80%--PageGetItemId
               |          |                     |          |          |          
               |          |                     |          |           --1.11%--LockBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.55%--LWLockAcquire
               |          |                     |          |          
               |          |                     |          |--2.54%--ItemPointerSet
               |          |                     |          |          |          
               |          |                     |          |           --0.81%--BlockIdSet
               |          |                     |          |          
               |          |                     |          |--1.13%--BufferGetPage
               |          |                     |          |          |          
               |          |                     |          |           --0.74%--BufferGetBlock
               |          |                     |          |          
               |          |                     |          |--0.83%--PageGetItemId
               |          |                     |          |          
               |          |                     |           --0.64%--PageGetItem
               |          |                     |          
               |          |                      --9.51%--ExecStoreBufferHeapTuple
               |          |                                |          
               |          |                                 --7.65%--tts_buffer_heap_store_tuple
               |          |                                           |          
               |          |                                           |--2.47%--IncrBufferRefCount
               |          |                                           |          |          
               |          |                                           |           --2.11%--GetPrivateRefCountEntry
               |          |                                           |                     |          
               |          |                                           |                      --1.54%--hash_search
               |          |                                           |                                |          
               |          |                                           |                                |--0.87%--hash_search_with_hash_value
               |          |                                           |                                |          
               |          |                                           |                                 --0.57%--uint32_hash
               |          |                                           |                                           |          
               |          |                                           |                                            --0.54%--hash_bytes_uint32
               |          |                                           |          
               |          |                                            --2.04%--ReleaseBuffer
               |          |                                                      |          
               |          |                                                       --1.95%--UnpinBuffer
               |          |                                                                 |          
               |          |                                                                 |--1.25%--UnpinBufferNoOwner
               |          |                                                                 |          
               |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
               |          |                                                                            |          
               |          |                                                                             --0.56%--ResourceOwnerForget
               |          |          
               |           --1.83%--ExecFetchSlotHeapTuple
               |                     |          
               |                      --0.83%--tts_buffer_heap_get_heap_tuple
               |          
               |--2.20%--TransactionIdPrecedes
               |          
                --1.18%--MultiXactIdPrecedes

    91.13%     0.00%  postgres  [.] BackendMain
            |
            ---BackendMain
               PostgresMain
               exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               |          
               |--81.42%--systable_getnext
               |          |          
               |          |--76.61%--table_scan_getnextslot
               |          |          |          
               |          |           --73.16%--heap_getnextslot
               |          |                     |          
               |          |                     |--57.95%--heapgettup_pagemode
               |          |                     |          |          
               |          |                     |          |--30.65%--heap_fetch_next_buffer
               |          |                     |          |          |          
               |          |                     |          |          |--29.43%--read_stream_next_buffer
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--17.13%--WaitReadBuffers
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--13.62%--smgrreadv
               |          |                     |          |          |          |          |          |          
               |          |                     |          |          |          |          |           --13.58%--mdreadv
               |          |                     |          |          |          |          |                     |          
               |          |                     |          |          |          |          |                      --13.47%--FileReadV
               |          |                     |          |          |          |          |                                |          
               |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
               |          |                     |          |          |          |          |                                           |          |          
               |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                           |                     do_syscall_64
               |          |                     |          |          |          |          |                                           |                     |          
               |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
               |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
               |          |                     |          |          |          |          |                                           |                                |          
               |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
               |          |                     |          |          |          |          |                                           |                                           |          
               |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      |          
               |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
               |          |                     |          |          |          |          |                                           |                                                                 |          
               |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
               |          |                     |          |          |          |          |                                           |                                                                            |          
               |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
               |          |                     |          |          |          |          |                                                      |          
               |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                                                 |          
               |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
               |          |                     |          |          |          |          |                                                                            |          
               |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
               |          |                     |          |          |          |          |                                                                                       |          
               |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
               |          |                     |          |          |          |          |                                                                                                  |          
               |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
               |          |                     |          |          |          |          |                                                                                                             |          
               |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
               |          |                     |          |          |          |          |                                                                                                                        |          
               |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   |          
               |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
               |          |                     |          |          |          |          |                                                                                                                                              |          
               |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
               |          |                     |          |          |          |          |                                                                                                                                                         |          
               |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --1.24%--StartBufferIO
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
               |          |                     |          |          |          |          
               |          |                     |          |          |           --11.90%--read_stream_look_ahead
               |          |                     |          |          |                     |          
               |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
               |          |                     |          |          |                                |          
               |          |                     |          |          |                                 --11.30%--StartReadBuffers
               |          |                     |          |          |                                           StartReadBuffersImpl
               |          |                     |          |          |                                           |          
               |          |                     |          |          |                                            --11.17%--PinBufferForBlock
               |          |                     |          |          |                                                      |          
               |          |                     |          |          |                                                       --10.94%--BufferAlloc
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
               |          |                     |          |          |                                                                 |                     |                     |          
               |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
               |          |                     |          |          |                                                                 |                     |                                |          
               |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
               |          |                     |          |          |                                                                 |                                |          
               |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
               |          |                     |          |          |                                                                            |          
               |          |                     |          |          |                                                                             --0.55%--hash_search
               |          |                     |          |          |          
               |          |                     |          |           --0.84%--ReleaseBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.79%--UnpinBuffer
               |          |                     |          |                                |          
               |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
               |          |                     |          |          
               |          |                     |          |--16.44%--heap_prepare_pagescan
               |          |                     |          |          |          
               |          |                     |          |          |--14.71%--page_collect_tuples
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--1.91%--ItemPointerSet
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --0.81%--BlockIdSet
               |          |                     |          |          |          |          
               |          |                     |          |          |           --0.80%--PageGetItemId
               |          |                     |          |          |          
               |          |                     |          |           --1.11%--LockBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.55%--LWLockAcquire
               |          |                     |          |          
               |          |                     |          |--2.54%--ItemPointerSet
               |          |                     |          |          |          
               |          |                     |          |           --0.81%--BlockIdSet
               |          |                     |          |          
               |          |                     |          |--1.13%--BufferGetPage
               |          |                     |          |          |          
               |          |                     |          |           --0.74%--BufferGetBlock
               |          |                     |          |          
               |          |                     |          |--0.83%--PageGetItemId
               |          |                     |          |          
               |          |                     |           --0.64%--PageGetItem
               |          |                     |          
               |          |                      --9.51%--ExecStoreBufferHeapTuple
               |          |                                |          
               |          |                                 --7.65%--tts_buffer_heap_store_tuple
               |          |                                           |          
               |          |                                           |--2.47%--IncrBufferRefCount
               |          |                                           |          |          
               |          |                                           |           --2.11%--GetPrivateRefCountEntry
               |          |                                           |                     |          
               |          |                                           |                      --1.54%--hash_search
               |          |                                           |                                |          
               |          |                                           |                                |--0.87%--hash_search_with_hash_value
               |          |                                           |                                |          
               |          |                                           |                                 --0.57%--uint32_hash
               |          |                                           |                                           |          
               |          |                                           |                                            --0.54%--hash_bytes_uint32
               |          |                                           |          
               |          |                                            --2.04%--ReleaseBuffer
               |          |                                                      |          
               |          |                                                       --1.95%--UnpinBuffer
               |          |                                                                 |          
               |          |                                                                 |--1.25%--UnpinBufferNoOwner
               |          |                                                                 |          
               |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
               |          |                                                                            |          
               |          |                                                                             --0.56%--ResourceOwnerForget
               |          |          
               |           --1.83%--ExecFetchSlotHeapTuple
               |                     |          
               |                      --0.83%--tts_buffer_heap_get_heap_tuple
               |          
               |--2.20%--TransactionIdPrecedes
               |          
                --1.18%--MultiXactIdPrecedes

    91.13%     0.00%  postgres  [.] PostgresMain
            |
            ---PostgresMain
               exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               |          
               |--81.42%--systable_getnext
               |          |          
               |          |--76.61%--table_scan_getnextslot
               |          |          |          
               |          |           --73.16%--heap_getnextslot
               |          |                     |          
               |          |                     |--57.95%--heapgettup_pagemode
               |          |                     |          |          
               |          |                     |          |--30.65%--heap_fetch_next_buffer
               |          |                     |          |          |          
               |          |                     |          |          |--29.43%--read_stream_next_buffer
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--17.13%--WaitReadBuffers
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--13.62%--smgrreadv
               |          |                     |          |          |          |          |          |          
               |          |                     |          |          |          |          |           --13.58%--mdreadv
               |          |                     |          |          |          |          |                     |          
               |          |                     |          |          |          |          |                      --13.47%--FileReadV
               |          |                     |          |          |          |          |                                |          
               |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
               |          |                     |          |          |          |          |                                           |          |          
               |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                           |                     do_syscall_64
               |          |                     |          |          |          |          |                                           |                     |          
               |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
               |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
               |          |                     |          |          |          |          |                                           |                                |          
               |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
               |          |                     |          |          |          |          |                                           |                                           |          
               |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      |          
               |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
               |          |                     |          |          |          |          |                                           |                                                                 |          
               |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
               |          |                     |          |          |          |          |                                           |                                                                            |          
               |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
               |          |                     |          |          |          |          |                                                      |          
               |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                                                 |          
               |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
               |          |                     |          |          |          |          |                                                                            |          
               |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
               |          |                     |          |          |          |          |                                                                                       |          
               |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
               |          |                     |          |          |          |          |                                                                                                  |          
               |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
               |          |                     |          |          |          |          |                                                                                                             |          
               |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
               |          |                     |          |          |          |          |                                                                                                                        |          
               |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   |          
               |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
               |          |                     |          |          |          |          |                                                                                                                                              |          
               |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
               |          |                     |          |          |          |          |                                                                                                                                                         |          
               |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --1.24%--StartBufferIO
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
               |          |                     |          |          |          |          
               |          |                     |          |          |           --11.90%--read_stream_look_ahead
               |          |                     |          |          |                     |          
               |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
               |          |                     |          |          |                                |          
               |          |                     |          |          |                                 --11.30%--StartReadBuffers
               |          |                     |          |          |                                           StartReadBuffersImpl
               |          |                     |          |          |                                           |          
               |          |                     |          |          |                                            --11.17%--PinBufferForBlock
               |          |                     |          |          |                                                      |          
               |          |                     |          |          |                                                       --10.94%--BufferAlloc
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
               |          |                     |          |          |                                                                 |                     |                     |          
               |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
               |          |                     |          |          |                                                                 |                     |                                |          
               |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
               |          |                     |          |          |                                                                 |                                |          
               |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
               |          |                     |          |          |                                                                            |          
               |          |                     |          |          |                                                                             --0.55%--hash_search
               |          |                     |          |          |          
               |          |                     |          |           --0.84%--ReleaseBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.79%--UnpinBuffer
               |          |                     |          |                                |          
               |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
               |          |                     |          |          
               |          |                     |          |--16.44%--heap_prepare_pagescan
               |          |                     |          |          |          
               |          |                     |          |          |--14.71%--page_collect_tuples
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--1.91%--ItemPointerSet
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --0.81%--BlockIdSet
               |          |                     |          |          |          |          
               |          |                     |          |          |           --0.80%--PageGetItemId
               |          |                     |          |          |          
               |          |                     |          |           --1.11%--LockBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.55%--LWLockAcquire
               |          |                     |          |          
               |          |                     |          |--2.54%--ItemPointerSet
               |          |                     |          |          |          
               |          |                     |          |           --0.81%--BlockIdSet
               |          |                     |          |          
               |          |                     |          |--1.13%--BufferGetPage
               |          |                     |          |          |          
               |          |                     |          |           --0.74%--BufferGetBlock
               |          |                     |          |          
               |          |                     |          |--0.83%--PageGetItemId
               |          |                     |          |          
               |          |                     |           --0.64%--PageGetItem
               |          |                     |          
               |          |                      --9.51%--ExecStoreBufferHeapTuple
               |          |                                |          
               |          |                                 --7.65%--tts_buffer_heap_store_tuple
               |          |                                           |          
               |          |                                           |--2.47%--IncrBufferRefCount
               |          |                                           |          |          
               |          |                                           |           --2.11%--GetPrivateRefCountEntry
               |          |                                           |                     |          
               |          |                                           |                      --1.54%--hash_search
               |          |                                           |                                |          
               |          |                                           |                                |--0.87%--hash_search_with_hash_value
               |          |                                           |                                |          
               |          |                                           |                                 --0.57%--uint32_hash
               |          |                                           |                                           |          
               |          |                                           |                                            --0.54%--hash_bytes_uint32
               |          |                                           |          
               |          |                                            --2.04%--ReleaseBuffer
               |          |                                                      |          
               |          |                                                       --1.95%--UnpinBuffer
               |          |                                                                 |          
               |          |                                                                 |--1.25%--UnpinBufferNoOwner
               |          |                                                                 |          
               |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
               |          |                                                                            |          
               |          |                                                                             --0.56%--ResourceOwnerForget
               |          |          
               |           --1.83%--ExecFetchSlotHeapTuple
               |                     |          
               |                      --0.83%--tts_buffer_heap_get_heap_tuple
               |          
               |--2.20%--TransactionIdPrecedes
               |          
                --1.18%--MultiXactIdPrecedes

    91.13%     0.00%  postgres  [.] exec_simple_query
            |
            ---exec_simple_query
               PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               |          
               |--81.42%--systable_getnext
               |          |          
               |          |--76.61%--table_scan_getnextslot
               |          |          |          
               |          |           --73.16%--heap_getnextslot
               |          |                     |          
               |          |                     |--57.95%--heapgettup_pagemode
               |          |                     |          |          
               |          |                     |          |--30.65%--heap_fetch_next_buffer
               |          |                     |          |          |          
               |          |                     |          |          |--29.43%--read_stream_next_buffer
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--17.13%--WaitReadBuffers
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--13.62%--smgrreadv
               |          |                     |          |          |          |          |          |          
               |          |                     |          |          |          |          |           --13.58%--mdreadv
               |          |                     |          |          |          |          |                     |          
               |          |                     |          |          |          |          |                      --13.47%--FileReadV
               |          |                     |          |          |          |          |                                |          
               |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
               |          |                     |          |          |          |          |                                           |          |          
               |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                           |                     do_syscall_64
               |          |                     |          |          |          |          |                                           |                     |          
               |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
               |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
               |          |                     |          |          |          |          |                                           |                                |          
               |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
               |          |                     |          |          |          |          |                                           |                                           |          
               |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      |          
               |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
               |          |                     |          |          |          |          |                                           |                                                                 |          
               |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
               |          |                     |          |          |          |          |                                           |                                                                            |          
               |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
               |          |                     |          |          |          |          |                                                      |          
               |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                                                 |          
               |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
               |          |                     |          |          |          |          |                                                                            |          
               |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
               |          |                     |          |          |          |          |                                                                                       |          
               |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
               |          |                     |          |          |          |          |                                                                                                  |          
               |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
               |          |                     |          |          |          |          |                                                                                                             |          
               |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
               |          |                     |          |          |          |          |                                                                                                                        |          
               |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   |          
               |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
               |          |                     |          |          |          |          |                                                                                                                                              |          
               |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
               |          |                     |          |          |          |          |                                                                                                                                                         |          
               |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --1.24%--StartBufferIO
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
               |          |                     |          |          |          |          
               |          |                     |          |          |           --11.90%--read_stream_look_ahead
               |          |                     |          |          |                     |          
               |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
               |          |                     |          |          |                                |          
               |          |                     |          |          |                                 --11.30%--StartReadBuffers
               |          |                     |          |          |                                           StartReadBuffersImpl
               |          |                     |          |          |                                           |          
               |          |                     |          |          |                                            --11.17%--PinBufferForBlock
               |          |                     |          |          |                                                      |          
               |          |                     |          |          |                                                       --10.94%--BufferAlloc
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
               |          |                     |          |          |                                                                 |                     |                     |          
               |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
               |          |                     |          |          |                                                                 |                     |                                |          
               |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
               |          |                     |          |          |                                                                 |                                |          
               |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
               |          |                     |          |          |                                                                            |          
               |          |                     |          |          |                                                                             --0.55%--hash_search
               |          |                     |          |          |          
               |          |                     |          |           --0.84%--ReleaseBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.79%--UnpinBuffer
               |          |                     |          |                                |          
               |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
               |          |                     |          |          
               |          |                     |          |--16.44%--heap_prepare_pagescan
               |          |                     |          |          |          
               |          |                     |          |          |--14.71%--page_collect_tuples
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--1.91%--ItemPointerSet
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --0.81%--BlockIdSet
               |          |                     |          |          |          |          
               |          |                     |          |          |           --0.80%--PageGetItemId
               |          |                     |          |          |          
               |          |                     |          |           --1.11%--LockBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.55%--LWLockAcquire
               |          |                     |          |          
               |          |                     |          |--2.54%--ItemPointerSet
               |          |                     |          |          |          
               |          |                     |          |           --0.81%--BlockIdSet
               |          |                     |          |          
               |          |                     |          |--1.13%--BufferGetPage
               |          |                     |          |          |          
               |          |                     |          |           --0.74%--BufferGetBlock
               |          |                     |          |          
               |          |                     |          |--0.83%--PageGetItemId
               |          |                     |          |          
               |          |                     |           --0.64%--PageGetItem
               |          |                     |          
               |          |                      --9.51%--ExecStoreBufferHeapTuple
               |          |                                |          
               |          |                                 --7.65%--tts_buffer_heap_store_tuple
               |          |                                           |          
               |          |                                           |--2.47%--IncrBufferRefCount
               |          |                                           |          |          
               |          |                                           |           --2.11%--GetPrivateRefCountEntry
               |          |                                           |                     |          
               |          |                                           |                      --1.54%--hash_search
               |          |                                           |                                |          
               |          |                                           |                                |--0.87%--hash_search_with_hash_value
               |          |                                           |                                |          
               |          |                                           |                                 --0.57%--uint32_hash
               |          |                                           |                                           |          
               |          |                                           |                                            --0.54%--hash_bytes_uint32
               |          |                                           |          
               |          |                                            --2.04%--ReleaseBuffer
               |          |                                                      |          
               |          |                                                       --1.95%--UnpinBuffer
               |          |                                                                 |          
               |          |                                                                 |--1.25%--UnpinBufferNoOwner
               |          |                                                                 |          
               |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
               |          |                                                                            |          
               |          |                                                                             --0.56%--ResourceOwnerForget
               |          |          
               |           --1.83%--ExecFetchSlotHeapTuple
               |                     |          
               |                      --0.83%--tts_buffer_heap_get_heap_tuple
               |          
               |--2.20%--TransactionIdPrecedes
               |          
                --1.18%--MultiXactIdPrecedes

    91.13%     0.00%  postgres  [.] PortalRun
            |
            ---PortalRun
               PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               |          
               |--81.42%--systable_getnext
               |          |          
               |          |--76.61%--table_scan_getnextslot
               |          |          |          
               |          |           --73.16%--heap_getnextslot
               |          |                     |          
               |          |                     |--57.95%--heapgettup_pagemode
               |          |                     |          |          
               |          |                     |          |--30.65%--heap_fetch_next_buffer
               |          |                     |          |          |          
               |          |                     |          |          |--29.43%--read_stream_next_buffer
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--17.13%--WaitReadBuffers
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--13.62%--smgrreadv
               |          |                     |          |          |          |          |          |          
               |          |                     |          |          |          |          |           --13.58%--mdreadv
               |          |                     |          |          |          |          |                     |          
               |          |                     |          |          |          |          |                      --13.47%--FileReadV
               |          |                     |          |          |          |          |                                |          
               |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
               |          |                     |          |          |          |          |                                           |          |          
               |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                           |                     do_syscall_64
               |          |                     |          |          |          |          |                                           |                     |          
               |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
               |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
               |          |                     |          |          |          |          |                                           |                                |          
               |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
               |          |                     |          |          |          |          |                                           |                                           |          
               |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      |          
               |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
               |          |                     |          |          |          |          |                                           |                                                                 |          
               |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
               |          |                     |          |          |          |          |                                           |                                                                            |          
               |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
               |          |                     |          |          |          |          |                                                      |          
               |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                                                 |          
               |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
               |          |                     |          |          |          |          |                                                                            |          
               |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
               |          |                     |          |          |          |          |                                                                                       |          
               |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
               |          |                     |          |          |          |          |                                                                                                  |          
               |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
               |          |                     |          |          |          |          |                                                                                                             |          
               |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
               |          |                     |          |          |          |          |                                                                                                                        |          
               |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   |          
               |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
               |          |                     |          |          |          |          |                                                                                                                                              |          
               |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
               |          |                     |          |          |          |          |                                                                                                                                                         |          
               |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --1.24%--StartBufferIO
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
               |          |                     |          |          |          |          
               |          |                     |          |          |           --11.90%--read_stream_look_ahead
               |          |                     |          |          |                     |          
               |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
               |          |                     |          |          |                                |          
               |          |                     |          |          |                                 --11.30%--StartReadBuffers
               |          |                     |          |          |                                           StartReadBuffersImpl
               |          |                     |          |          |                                           |          
               |          |                     |          |          |                                            --11.17%--PinBufferForBlock
               |          |                     |          |          |                                                      |          
               |          |                     |          |          |                                                       --10.94%--BufferAlloc
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
               |          |                     |          |          |                                                                 |                     |                     |          
               |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
               |          |                     |          |          |                                                                 |                     |                                |          
               |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
               |          |                     |          |          |                                                                 |                                |          
               |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
               |          |                     |          |          |                                                                            |          
               |          |                     |          |          |                                                                             --0.55%--hash_search
               |          |                     |          |          |          
               |          |                     |          |           --0.84%--ReleaseBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.79%--UnpinBuffer
               |          |                     |          |                                |          
               |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
               |          |                     |          |          
               |          |                     |          |--16.44%--heap_prepare_pagescan
               |          |                     |          |          |          
               |          |                     |          |          |--14.71%--page_collect_tuples
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--1.91%--ItemPointerSet
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --0.81%--BlockIdSet
               |          |                     |          |          |          |          
               |          |                     |          |          |           --0.80%--PageGetItemId
               |          |                     |          |          |          
               |          |                     |          |           --1.11%--LockBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.55%--LWLockAcquire
               |          |                     |          |          
               |          |                     |          |--2.54%--ItemPointerSet
               |          |                     |          |          |          
               |          |                     |          |           --0.81%--BlockIdSet
               |          |                     |          |          
               |          |                     |          |--1.13%--BufferGetPage
               |          |                     |          |          |          
               |          |                     |          |           --0.74%--BufferGetBlock
               |          |                     |          |          
               |          |                     |          |--0.83%--PageGetItemId
               |          |                     |          |          
               |          |                     |           --0.64%--PageGetItem
               |          |                     |          
               |          |                      --9.51%--ExecStoreBufferHeapTuple
               |          |                                |          
               |          |                                 --7.65%--tts_buffer_heap_store_tuple
               |          |                                           |          
               |          |                                           |--2.47%--IncrBufferRefCount
               |          |                                           |          |          
               |          |                                           |           --2.11%--GetPrivateRefCountEntry
               |          |                                           |                     |          
               |          |                                           |                      --1.54%--hash_search
               |          |                                           |                                |          
               |          |                                           |                                |--0.87%--hash_search_with_hash_value
               |          |                                           |                                |          
               |          |                                           |                                 --0.57%--uint32_hash
               |          |                                           |                                           |          
               |          |                                           |                                            --0.54%--hash_bytes_uint32
               |          |                                           |          
               |          |                                            --2.04%--ReleaseBuffer
               |          |                                                      |          
               |          |                                                       --1.95%--UnpinBuffer
               |          |                                                                 |          
               |          |                                                                 |--1.25%--UnpinBufferNoOwner
               |          |                                                                 |          
               |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
               |          |                                                                            |          
               |          |                                                                             --0.56%--ResourceOwnerForget
               |          |          
               |           --1.83%--ExecFetchSlotHeapTuple
               |                     |          
               |                      --0.83%--tts_buffer_heap_get_heap_tuple
               |          
               |--2.20%--TransactionIdPrecedes
               |          
                --1.18%--MultiXactIdPrecedes

    91.13%     0.00%  postgres  [.] PortalRunMulti
            |
            ---PortalRunMulti
               PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               |          
               |--81.42%--systable_getnext
               |          |          
               |          |--76.61%--table_scan_getnextslot
               |          |          |          
               |          |           --73.16%--heap_getnextslot
               |          |                     |          
               |          |                     |--57.95%--heapgettup_pagemode
               |          |                     |          |          
               |          |                     |          |--30.65%--heap_fetch_next_buffer
               |          |                     |          |          |          
               |          |                     |          |          |--29.43%--read_stream_next_buffer
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--17.13%--WaitReadBuffers
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--13.62%--smgrreadv
               |          |                     |          |          |          |          |          |          
               |          |                     |          |          |          |          |           --13.58%--mdreadv
               |          |                     |          |          |          |          |                     |          
               |          |                     |          |          |          |          |                      --13.47%--FileReadV
               |          |                     |          |          |          |          |                                |          
               |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
               |          |                     |          |          |          |          |                                           |          |          
               |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                           |                     do_syscall_64
               |          |                     |          |          |          |          |                                           |                     |          
               |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
               |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
               |          |                     |          |          |          |          |                                           |                                |          
               |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
               |          |                     |          |          |          |          |                                           |                                           |          
               |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      |          
               |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
               |          |                     |          |          |          |          |                                           |                                                                 |          
               |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
               |          |                     |          |          |          |          |                                           |                                                                            |          
               |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
               |          |                     |          |          |          |          |                                                      |          
               |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                                                 |          
               |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
               |          |                     |          |          |          |          |                                                                            |          
               |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
               |          |                     |          |          |          |          |                                                                                       |          
               |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
               |          |                     |          |          |          |          |                                                                                                  |          
               |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
               |          |                     |          |          |          |          |                                                                                                             |          
               |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
               |          |                     |          |          |          |          |                                                                                                                        |          
               |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   |          
               |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
               |          |                     |          |          |          |          |                                                                                                                                              |          
               |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
               |          |                     |          |          |          |          |                                                                                                                                                         |          
               |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --1.24%--StartBufferIO
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
               |          |                     |          |          |          |          
               |          |                     |          |          |           --11.90%--read_stream_look_ahead
               |          |                     |          |          |                     |          
               |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
               |          |                     |          |          |                                |          
               |          |                     |          |          |                                 --11.30%--StartReadBuffers
               |          |                     |          |          |                                           StartReadBuffersImpl
               |          |                     |          |          |                                           |          
               |          |                     |          |          |                                            --11.17%--PinBufferForBlock
               |          |                     |          |          |                                                      |          
               |          |                     |          |          |                                                       --10.94%--BufferAlloc
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
               |          |                     |          |          |                                                                 |                     |                     |          
               |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
               |          |                     |          |          |                                                                 |                     |                                |          
               |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
               |          |                     |          |          |                                                                 |                                |          
               |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
               |          |                     |          |          |                                                                            |          
               |          |                     |          |          |                                                                             --0.55%--hash_search
               |          |                     |          |          |          
               |          |                     |          |           --0.84%--ReleaseBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.79%--UnpinBuffer
               |          |                     |          |                                |          
               |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
               |          |                     |          |          
               |          |                     |          |--16.44%--heap_prepare_pagescan
               |          |                     |          |          |          
               |          |                     |          |          |--14.71%--page_collect_tuples
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--1.91%--ItemPointerSet
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --0.81%--BlockIdSet
               |          |                     |          |          |          |          
               |          |                     |          |          |           --0.80%--PageGetItemId
               |          |                     |          |          |          
               |          |                     |          |           --1.11%--LockBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.55%--LWLockAcquire
               |          |                     |          |          
               |          |                     |          |--2.54%--ItemPointerSet
               |          |                     |          |          |          
               |          |                     |          |           --0.81%--BlockIdSet
               |          |                     |          |          
               |          |                     |          |--1.13%--BufferGetPage
               |          |                     |          |          |          
               |          |                     |          |           --0.74%--BufferGetBlock
               |          |                     |          |          
               |          |                     |          |--0.83%--PageGetItemId
               |          |                     |          |          
               |          |                     |           --0.64%--PageGetItem
               |          |                     |          
               |          |                      --9.51%--ExecStoreBufferHeapTuple
               |          |                                |          
               |          |                                 --7.65%--tts_buffer_heap_store_tuple
               |          |                                           |          
               |          |                                           |--2.47%--IncrBufferRefCount
               |          |                                           |          |          
               |          |                                           |           --2.11%--GetPrivateRefCountEntry
               |          |                                           |                     |          
               |          |                                           |                      --1.54%--hash_search
               |          |                                           |                                |          
               |          |                                           |                                |--0.87%--hash_search_with_hash_value
               |          |                                           |                                |          
               |          |                                           |                                 --0.57%--uint32_hash
               |          |                                           |                                           |          
               |          |                                           |                                            --0.54%--hash_bytes_uint32
               |          |                                           |          
               |          |                                            --2.04%--ReleaseBuffer
               |          |                                                      |          
               |          |                                                       --1.95%--UnpinBuffer
               |          |                                                                 |          
               |          |                                                                 |--1.25%--UnpinBufferNoOwner
               |          |                                                                 |          
               |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
               |          |                                                                            |          
               |          |                                                                             --0.56%--ResourceOwnerForget
               |          |          
               |           --1.83%--ExecFetchSlotHeapTuple
               |                     |          
               |                      --0.83%--tts_buffer_heap_get_heap_tuple
               |          
               |--2.20%--TransactionIdPrecedes
               |          
                --1.18%--MultiXactIdPrecedes

    91.13%     0.00%  postgres  [.] PortalRunUtility
            |
            ---PortalRunUtility
               ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               |          
               |--81.42%--systable_getnext
               |          |          
               |          |--76.61%--table_scan_getnextslot
               |          |          |          
               |          |           --73.16%--heap_getnextslot
               |          |                     |          
               |          |                     |--57.95%--heapgettup_pagemode
               |          |                     |          |          
               |          |                     |          |--30.65%--heap_fetch_next_buffer
               |          |                     |          |          |          
               |          |                     |          |          |--29.43%--read_stream_next_buffer
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--17.13%--WaitReadBuffers
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--13.62%--smgrreadv
               |          |                     |          |          |          |          |          |          
               |          |                     |          |          |          |          |           --13.58%--mdreadv
               |          |                     |          |          |          |          |                     |          
               |          |                     |          |          |          |          |                      --13.47%--FileReadV
               |          |                     |          |          |          |          |                                |          
               |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
               |          |                     |          |          |          |          |                                           |          |          
               |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                           |                     do_syscall_64
               |          |                     |          |          |          |          |                                           |                     |          
               |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
               |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
               |          |                     |          |          |          |          |                                           |                                |          
               |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
               |          |                     |          |          |          |          |                                           |                                           |          
               |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      |          
               |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
               |          |                     |          |          |          |          |                                           |                                                                 |          
               |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
               |          |                     |          |          |          |          |                                           |                                                                            |          
               |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
               |          |                     |          |          |          |          |                                                      |          
               |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                                                 |          
               |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
               |          |                     |          |          |          |          |                                                                            |          
               |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
               |          |                     |          |          |          |          |                                                                                       |          
               |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
               |          |                     |          |          |          |          |                                                                                                  |          
               |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
               |          |                     |          |          |          |          |                                                                                                             |          
               |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
               |          |                     |          |          |          |          |                                                                                                                        |          
               |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   |          
               |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
               |          |                     |          |          |          |          |                                                                                                                                              |          
               |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
               |          |                     |          |          |          |          |                                                                                                                                                         |          
               |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --1.24%--StartBufferIO
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
               |          |                     |          |          |          |          
               |          |                     |          |          |           --11.90%--read_stream_look_ahead
               |          |                     |          |          |                     |          
               |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
               |          |                     |          |          |                                |          
               |          |                     |          |          |                                 --11.30%--StartReadBuffers
               |          |                     |          |          |                                           StartReadBuffersImpl
               |          |                     |          |          |                                           |          
               |          |                     |          |          |                                            --11.17%--PinBufferForBlock
               |          |                     |          |          |                                                      |          
               |          |                     |          |          |                                                       --10.94%--BufferAlloc
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
               |          |                     |          |          |                                                                 |                     |                     |          
               |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
               |          |                     |          |          |                                                                 |                     |                                |          
               |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
               |          |                     |          |          |                                                                 |                                |          
               |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
               |          |                     |          |          |                                                                            |          
               |          |                     |          |          |                                                                             --0.55%--hash_search
               |          |                     |          |          |          
               |          |                     |          |           --0.84%--ReleaseBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.79%--UnpinBuffer
               |          |                     |          |                                |          
               |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
               |          |                     |          |          
               |          |                     |          |--16.44%--heap_prepare_pagescan
               |          |                     |          |          |          
               |          |                     |          |          |--14.71%--page_collect_tuples
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--1.91%--ItemPointerSet
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --0.81%--BlockIdSet
               |          |                     |          |          |          |          
               |          |                     |          |          |           --0.80%--PageGetItemId
               |          |                     |          |          |          
               |          |                     |          |           --1.11%--LockBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.55%--LWLockAcquire
               |          |                     |          |          
               |          |                     |          |--2.54%--ItemPointerSet
               |          |                     |          |          |          
               |          |                     |          |           --0.81%--BlockIdSet
               |          |                     |          |          
               |          |                     |          |--1.13%--BufferGetPage
               |          |                     |          |          |          
               |          |                     |          |           --0.74%--BufferGetBlock
               |          |                     |          |          
               |          |                     |          |--0.83%--PageGetItemId
               |          |                     |          |          
               |          |                     |           --0.64%--PageGetItem
               |          |                     |          
               |          |                      --9.51%--ExecStoreBufferHeapTuple
               |          |                                |          
               |          |                                 --7.65%--tts_buffer_heap_store_tuple
               |          |                                           |          
               |          |                                           |--2.47%--IncrBufferRefCount
               |          |                                           |          |          
               |          |                                           |           --2.11%--GetPrivateRefCountEntry
               |          |                                           |                     |          
               |          |                                           |                      --1.54%--hash_search
               |          |                                           |                                |          
               |          |                                           |                                |--0.87%--hash_search_with_hash_value
               |          |                                           |                                |          
               |          |                                           |                                 --0.57%--uint32_hash
               |          |                                           |                                           |          
               |          |                                           |                                            --0.54%--hash_bytes_uint32
               |          |                                           |          
               |          |                                            --2.04%--ReleaseBuffer
               |          |                                                      |          
               |          |                                                       --1.95%--UnpinBuffer
               |          |                                                                 |          
               |          |                                                                 |--1.25%--UnpinBufferNoOwner
               |          |                                                                 |          
               |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
               |          |                                                                            |          
               |          |                                                                             --0.56%--ResourceOwnerForget
               |          |          
               |           --1.83%--ExecFetchSlotHeapTuple
               |                     |          
               |                      --0.83%--tts_buffer_heap_get_heap_tuple
               |          
               |--2.20%--TransactionIdPrecedes
               |          
                --1.18%--MultiXactIdPrecedes

    91.13%     0.00%  postgres  [.] ProcessUtility
            |
            ---ProcessUtility
               standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               |          
               |--81.42%--systable_getnext
               |          |          
               |          |--76.61%--table_scan_getnextslot
               |          |          |          
               |          |           --73.16%--heap_getnextslot
               |          |                     |          
               |          |                     |--57.95%--heapgettup_pagemode
               |          |                     |          |          
               |          |                     |          |--30.65%--heap_fetch_next_buffer
               |          |                     |          |          |          
               |          |                     |          |          |--29.43%--read_stream_next_buffer
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--17.13%--WaitReadBuffers
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--13.62%--smgrreadv
               |          |                     |          |          |          |          |          |          
               |          |                     |          |          |          |          |           --13.58%--mdreadv
               |          |                     |          |          |          |          |                     |          
               |          |                     |          |          |          |          |                      --13.47%--FileReadV
               |          |                     |          |          |          |          |                                |          
               |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
               |          |                     |          |          |          |          |                                           |          |          
               |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                           |                     do_syscall_64
               |          |                     |          |          |          |          |                                           |                     |          
               |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
               |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
               |          |                     |          |          |          |          |                                           |                                |          
               |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
               |          |                     |          |          |          |          |                                           |                                           |          
               |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      |          
               |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
               |          |                     |          |          |          |          |                                           |                                                                 |          
               |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
               |          |                     |          |          |          |          |                                           |                                                                            |          
               |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
               |          |                     |          |          |          |          |                                                      |          
               |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                                                 |          
               |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
               |          |                     |          |          |          |          |                                                                            |          
               |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
               |          |                     |          |          |          |          |                                                                                       |          
               |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
               |          |                     |          |          |          |          |                                                                                                  |          
               |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
               |          |                     |          |          |          |          |                                                                                                             |          
               |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
               |          |                     |          |          |          |          |                                                                                                                        |          
               |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   |          
               |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
               |          |                     |          |          |          |          |                                                                                                                                              |          
               |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
               |          |                     |          |          |          |          |                                                                                                                                                         |          
               |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --1.24%--StartBufferIO
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
               |          |                     |          |          |          |          
               |          |                     |          |          |           --11.90%--read_stream_look_ahead
               |          |                     |          |          |                     |          
               |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
               |          |                     |          |          |                                |          
               |          |                     |          |          |                                 --11.30%--StartReadBuffers
               |          |                     |          |          |                                           StartReadBuffersImpl
               |          |                     |          |          |                                           |          
               |          |                     |          |          |                                            --11.17%--PinBufferForBlock
               |          |                     |          |          |                                                      |          
               |          |                     |          |          |                                                       --10.94%--BufferAlloc
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
               |          |                     |          |          |                                                                 |                     |                     |          
               |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
               |          |                     |          |          |                                                                 |                     |                                |          
               |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
               |          |                     |          |          |                                                                 |                                |          
               |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
               |          |                     |          |          |                                                                            |          
               |          |                     |          |          |                                                                             --0.55%--hash_search
               |          |                     |          |          |          
               |          |                     |          |           --0.84%--ReleaseBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.79%--UnpinBuffer
               |          |                     |          |                                |          
               |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
               |          |                     |          |          
               |          |                     |          |--16.44%--heap_prepare_pagescan
               |          |                     |          |          |          
               |          |                     |          |          |--14.71%--page_collect_tuples
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--1.91%--ItemPointerSet
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --0.81%--BlockIdSet
               |          |                     |          |          |          |          
               |          |                     |          |          |           --0.80%--PageGetItemId
               |          |                     |          |          |          
               |          |                     |          |           --1.11%--LockBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.55%--LWLockAcquire
               |          |                     |          |          
               |          |                     |          |--2.54%--ItemPointerSet
               |          |                     |          |          |          
               |          |                     |          |           --0.81%--BlockIdSet
               |          |                     |          |          
               |          |                     |          |--1.13%--BufferGetPage
               |          |                     |          |          |          
               |          |                     |          |           --0.74%--BufferGetBlock
               |          |                     |          |          
               |          |                     |          |--0.83%--PageGetItemId
               |          |                     |          |          
               |          |                     |           --0.64%--PageGetItem
               |          |                     |          
               |          |                      --9.51%--ExecStoreBufferHeapTuple
               |          |                                |          
               |          |                                 --7.65%--tts_buffer_heap_store_tuple
               |          |                                           |          
               |          |                                           |--2.47%--IncrBufferRefCount
               |          |                                           |          |          
               |          |                                           |           --2.11%--GetPrivateRefCountEntry
               |          |                                           |                     |          
               |          |                                           |                      --1.54%--hash_search
               |          |                                           |                                |          
               |          |                                           |                                |--0.87%--hash_search_with_hash_value
               |          |                                           |                                |          
               |          |                                           |                                 --0.57%--uint32_hash
               |          |                                           |                                           |          
               |          |                                           |                                            --0.54%--hash_bytes_uint32
               |          |                                           |          
               |          |                                            --2.04%--ReleaseBuffer
               |          |                                                      |          
               |          |                                                       --1.95%--UnpinBuffer
               |          |                                                                 |          
               |          |                                                                 |--1.25%--UnpinBufferNoOwner
               |          |                                                                 |          
               |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
               |          |                                                                            |          
               |          |                                                                             --0.56%--ResourceOwnerForget
               |          |          
               |           --1.83%--ExecFetchSlotHeapTuple
               |                     |          
               |                      --0.83%--tts_buffer_heap_get_heap_tuple
               |          
               |--2.20%--TransactionIdPrecedes
               |          
                --1.18%--MultiXactIdPrecedes

    91.13%     0.00%  postgres  [.] standard_ProcessUtility
            |
            ---standard_ProcessUtility
               ExecVacuum
               vacuum
               vac_update_datfrozenxid
               |          
               |--81.42%--systable_getnext
               |          |          
               |          |--76.61%--table_scan_getnextslot
               |          |          |          
               |          |           --73.16%--heap_getnextslot
               |          |                     |          
               |          |                     |--57.95%--heapgettup_pagemode
               |          |                     |          |          
               |          |                     |          |--30.65%--heap_fetch_next_buffer
               |          |                     |          |          |          
               |          |                     |          |          |--29.43%--read_stream_next_buffer
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--17.13%--WaitReadBuffers
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--13.62%--smgrreadv
               |          |                     |          |          |          |          |          |          
               |          |                     |          |          |          |          |           --13.58%--mdreadv
               |          |                     |          |          |          |          |                     |          
               |          |                     |          |          |          |          |                      --13.47%--FileReadV
               |          |                     |          |          |          |          |                                |          
               |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
               |          |                     |          |          |          |          |                                           |          |          
               |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                           |                     do_syscall_64
               |          |                     |          |          |          |          |                                           |                     |          
               |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
               |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
               |          |                     |          |          |          |          |                                           |                                |          
               |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
               |          |                     |          |          |          |          |                                           |                                           |          
               |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      |          
               |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
               |          |                     |          |          |          |          |                                           |                                                                 |          
               |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
               |          |                     |          |          |          |          |                                           |                                                                            |          
               |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
               |          |                     |          |          |          |          |                                                      |          
               |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                                                 |          
               |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
               |          |                     |          |          |          |          |                                                                            |          
               |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
               |          |                     |          |          |          |          |                                                                                       |          
               |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
               |          |                     |          |          |          |          |                                                                                                  |          
               |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
               |          |                     |          |          |          |          |                                                                                                             |          
               |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
               |          |                     |          |          |          |          |                                                                                                                        |          
               |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   |          
               |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
               |          |                     |          |          |          |          |                                                                                                                                              |          
               |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
               |          |                     |          |          |          |          |                                                                                                                                                         |          
               |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --1.24%--StartBufferIO
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
               |          |                     |          |          |          |          
               |          |                     |          |          |           --11.90%--read_stream_look_ahead
               |          |                     |          |          |                     |          
               |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
               |          |                     |          |          |                                |          
               |          |                     |          |          |                                 --11.30%--StartReadBuffers
               |          |                     |          |          |                                           StartReadBuffersImpl
               |          |                     |          |          |                                           |          
               |          |                     |          |          |                                            --11.17%--PinBufferForBlock
               |          |                     |          |          |                                                      |          
               |          |                     |          |          |                                                       --10.94%--BufferAlloc
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
               |          |                     |          |          |                                                                 |                     |                     |          
               |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
               |          |                     |          |          |                                                                 |                     |                                |          
               |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
               |          |                     |          |          |                                                                 |                                |          
               |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
               |          |                     |          |          |                                                                            |          
               |          |                     |          |          |                                                                             --0.55%--hash_search
               |          |                     |          |          |          
               |          |                     |          |           --0.84%--ReleaseBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.79%--UnpinBuffer
               |          |                     |          |                                |          
               |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
               |          |                     |          |          
               |          |                     |          |--16.44%--heap_prepare_pagescan
               |          |                     |          |          |          
               |          |                     |          |          |--14.71%--page_collect_tuples
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--1.91%--ItemPointerSet
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --0.81%--BlockIdSet
               |          |                     |          |          |          |          
               |          |                     |          |          |           --0.80%--PageGetItemId
               |          |                     |          |          |          
               |          |                     |          |           --1.11%--LockBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.55%--LWLockAcquire
               |          |                     |          |          
               |          |                     |          |--2.54%--ItemPointerSet
               |          |                     |          |          |          
               |          |                     |          |           --0.81%--BlockIdSet
               |          |                     |          |          
               |          |                     |          |--1.13%--BufferGetPage
               |          |                     |          |          |          
               |          |                     |          |           --0.74%--BufferGetBlock
               |          |                     |          |          
               |          |                     |          |--0.83%--PageGetItemId
               |          |                     |          |          
               |          |                     |           --0.64%--PageGetItem
               |          |                     |          
               |          |                      --9.51%--ExecStoreBufferHeapTuple
               |          |                                |          
               |          |                                 --7.65%--tts_buffer_heap_store_tuple
               |          |                                           |          
               |          |                                           |--2.47%--IncrBufferRefCount
               |          |                                           |          |          
               |          |                                           |           --2.11%--GetPrivateRefCountEntry
               |          |                                           |                     |          
               |          |                                           |                      --1.54%--hash_search
               |          |                                           |                                |          
               |          |                                           |                                |--0.87%--hash_search_with_hash_value
               |          |                                           |                                |          
               |          |                                           |                                 --0.57%--uint32_hash
               |          |                                           |                                           |          
               |          |                                           |                                            --0.54%--hash_bytes_uint32
               |          |                                           |          
               |          |                                            --2.04%--ReleaseBuffer
               |          |                                                      |          
               |          |                                                       --1.95%--UnpinBuffer
               |          |                                                                 |          
               |          |                                                                 |--1.25%--UnpinBufferNoOwner
               |          |                                                                 |          
               |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
               |          |                                                                            |          
               |          |                                                                             --0.56%--ResourceOwnerForget
               |          |          
               |           --1.83%--ExecFetchSlotHeapTuple
               |                     |          
               |                      --0.83%--tts_buffer_heap_get_heap_tuple
               |          
               |--2.20%--TransactionIdPrecedes
               |          
                --1.18%--MultiXactIdPrecedes

    91.13%     0.00%  postgres  [.] ExecVacuum
            |
            ---ExecVacuum
               vacuum
               vac_update_datfrozenxid
               |          
               |--81.42%--systable_getnext
               |          |          
               |          |--76.61%--table_scan_getnextslot
               |          |          |          
               |          |           --73.16%--heap_getnextslot
               |          |                     |          
               |          |                     |--57.95%--heapgettup_pagemode
               |          |                     |          |          
               |          |                     |          |--30.65%--heap_fetch_next_buffer
               |          |                     |          |          |          
               |          |                     |          |          |--29.43%--read_stream_next_buffer
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--17.13%--WaitReadBuffers
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--13.62%--smgrreadv
               |          |                     |          |          |          |          |          |          
               |          |                     |          |          |          |          |           --13.58%--mdreadv
               |          |                     |          |          |          |          |                     |          
               |          |                     |          |          |          |          |                      --13.47%--FileReadV
               |          |                     |          |          |          |          |                                |          
               |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
               |          |                     |          |          |          |          |                                           |          |          
               |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                           |                     do_syscall_64
               |          |                     |          |          |          |          |                                           |                     |          
               |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
               |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
               |          |                     |          |          |          |          |                                           |                                |          
               |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
               |          |                     |          |          |          |          |                                           |                                           |          
               |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      |          
               |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
               |          |                     |          |          |          |          |                                           |                                                                 |          
               |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
               |          |                     |          |          |          |          |                                           |                                                                            |          
               |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
               |          |                     |          |          |          |          |                                                      |          
               |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                                                 |          
               |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
               |          |                     |          |          |          |          |                                                                            |          
               |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
               |          |                     |          |          |          |          |                                                                                       |          
               |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
               |          |                     |          |          |          |          |                                                                                                  |          
               |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
               |          |                     |          |          |          |          |                                                                                                             |          
               |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
               |          |                     |          |          |          |          |                                                                                                                        |          
               |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   |          
               |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
               |          |                     |          |          |          |          |                                                                                                                                              |          
               |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
               |          |                     |          |          |          |          |                                                                                                                                                         |          
               |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --1.24%--StartBufferIO
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
               |          |                     |          |          |          |          
               |          |                     |          |          |           --11.90%--read_stream_look_ahead
               |          |                     |          |          |                     |          
               |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
               |          |                     |          |          |                                |          
               |          |                     |          |          |                                 --11.30%--StartReadBuffers
               |          |                     |          |          |                                           StartReadBuffersImpl
               |          |                     |          |          |                                           |          
               |          |                     |          |          |                                            --11.17%--PinBufferForBlock
               |          |                     |          |          |                                                      |          
               |          |                     |          |          |                                                       --10.94%--BufferAlloc
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
               |          |                     |          |          |                                                                 |                     |                     |          
               |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
               |          |                     |          |          |                                                                 |                     |                                |          
               |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
               |          |                     |          |          |                                                                 |                                |          
               |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
               |          |                     |          |          |                                                                            |          
               |          |                     |          |          |                                                                             --0.55%--hash_search
               |          |                     |          |          |          
               |          |                     |          |           --0.84%--ReleaseBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.79%--UnpinBuffer
               |          |                     |          |                                |          
               |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
               |          |                     |          |          
               |          |                     |          |--16.44%--heap_prepare_pagescan
               |          |                     |          |          |          
               |          |                     |          |          |--14.71%--page_collect_tuples
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--1.91%--ItemPointerSet
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --0.81%--BlockIdSet
               |          |                     |          |          |          |          
               |          |                     |          |          |           --0.80%--PageGetItemId
               |          |                     |          |          |          
               |          |                     |          |           --1.11%--LockBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.55%--LWLockAcquire
               |          |                     |          |          
               |          |                     |          |--2.54%--ItemPointerSet
               |          |                     |          |          |          
               |          |                     |          |           --0.81%--BlockIdSet
               |          |                     |          |          
               |          |                     |          |--1.13%--BufferGetPage
               |          |                     |          |          |          
               |          |                     |          |           --0.74%--BufferGetBlock
               |          |                     |          |          
               |          |                     |          |--0.83%--PageGetItemId
               |          |                     |          |          
               |          |                     |           --0.64%--PageGetItem
               |          |                     |          
               |          |                      --9.51%--ExecStoreBufferHeapTuple
               |          |                                |          
               |          |                                 --7.65%--tts_buffer_heap_store_tuple
               |          |                                           |          
               |          |                                           |--2.47%--IncrBufferRefCount
               |          |                                           |          |          
               |          |                                           |           --2.11%--GetPrivateRefCountEntry
               |          |                                           |                     |          
               |          |                                           |                      --1.54%--hash_search
               |          |                                           |                                |          
               |          |                                           |                                |--0.87%--hash_search_with_hash_value
               |          |                                           |                                |          
               |          |                                           |                                 --0.57%--uint32_hash
               |          |                                           |                                           |          
               |          |                                           |                                            --0.54%--hash_bytes_uint32
               |          |                                           |          
               |          |                                            --2.04%--ReleaseBuffer
               |          |                                                      |          
               |          |                                                       --1.95%--UnpinBuffer
               |          |                                                                 |          
               |          |                                                                 |--1.25%--UnpinBufferNoOwner
               |          |                                                                 |          
               |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
               |          |                                                                            |          
               |          |                                                                             --0.56%--ResourceOwnerForget
               |          |          
               |           --1.83%--ExecFetchSlotHeapTuple
               |                     |          
               |                      --0.83%--tts_buffer_heap_get_heap_tuple
               |          
               |--2.20%--TransactionIdPrecedes
               |          
                --1.18%--MultiXactIdPrecedes

    91.13%     0.00%  postgres  [.] vacuum
            |
            ---vacuum
               vac_update_datfrozenxid
               |          
               |--81.42%--systable_getnext
               |          |          
               |          |--76.61%--table_scan_getnextslot
               |          |          |          
               |          |           --73.16%--heap_getnextslot
               |          |                     |          
               |          |                     |--57.95%--heapgettup_pagemode
               |          |                     |          |          
               |          |                     |          |--30.65%--heap_fetch_next_buffer
               |          |                     |          |          |          
               |          |                     |          |          |--29.43%--read_stream_next_buffer
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--17.13%--WaitReadBuffers
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--13.62%--smgrreadv
               |          |                     |          |          |          |          |          |          
               |          |                     |          |          |          |          |           --13.58%--mdreadv
               |          |                     |          |          |          |          |                     |          
               |          |                     |          |          |          |          |                      --13.47%--FileReadV
               |          |                     |          |          |          |          |                                |          
               |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
               |          |                     |          |          |          |          |                                           |          |          
               |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                           |                     do_syscall_64
               |          |                     |          |          |          |          |                                           |                     |          
               |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
               |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
               |          |                     |          |          |          |          |                                           |                                |          
               |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
               |          |                     |          |          |          |          |                                           |                                           |          
               |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
               |          |                     |          |          |          |          |                                           |                                                      |          
               |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
               |          |                     |          |          |          |          |                                           |                                                                 |          
               |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
               |          |                     |          |          |          |          |                                           |                                                                            |          
               |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
               |          |                     |          |          |          |          |                                           |          
               |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
               |          |                     |          |          |          |          |                                                      |          
               |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
               |          |                     |          |          |          |          |                                                                 |          
               |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
               |          |                     |          |          |          |          |                                                                            |          
               |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
               |          |                     |          |          |          |          |                                                                                       |          
               |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
               |          |                     |          |          |          |          |                                                                                                  |          
               |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
               |          |                     |          |          |          |          |                                                                                                             |          
               |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
               |          |                     |          |          |          |          |                                                                                                                        |          
               |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
               |          |                     |          |          |          |          |                                                                                                                                   |          
               |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
               |          |                     |          |          |          |          |                                                                                                                                              |          
               |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
               |          |                     |          |          |          |          |                                                                                                                                                         |          
               |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --1.24%--StartBufferIO
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
               |          |                     |          |          |          |          
               |          |                     |          |          |           --11.90%--read_stream_look_ahead
               |          |                     |          |          |                     |          
               |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
               |          |                     |          |          |                                |          
               |          |                     |          |          |                                 --11.30%--StartReadBuffers
               |          |                     |          |          |                                           StartReadBuffersImpl
               |          |                     |          |          |                                           |          
               |          |                     |          |          |                                            --11.17%--PinBufferForBlock
               |          |                     |          |          |                                                      |          
               |          |                     |          |          |                                                       --10.94%--BufferAlloc
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
               |          |                     |          |          |                                                                 |                     |          |          
               |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
               |          |                     |          |          |                                                                 |                     |                     |          
               |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
               |          |                     |          |          |                                                                 |                     |                                |          
               |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
               |          |                     |          |          |                                                                 |                     |          
               |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
               |          |                     |          |          |                                                                 |                                |          
               |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
               |          |                     |          |          |                                                                 |          |          
               |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
               |          |                     |          |          |                                                                 |          
               |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
               |          |                     |          |          |                                                                            |          
               |          |                     |          |          |                                                                             --0.55%--hash_search
               |          |                     |          |          |          
               |          |                     |          |           --0.84%--ReleaseBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.79%--UnpinBuffer
               |          |                     |          |                                |          
               |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
               |          |                     |          |          
               |          |                     |          |--16.44%--heap_prepare_pagescan
               |          |                     |          |          |          
               |          |                     |          |          |--14.71%--page_collect_tuples
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
               |          |                     |          |          |          |                     |          
               |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
               |          |                     |          |          |          |                                |          
               |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
               |          |                     |          |          |          |          
               |          |                     |          |          |          |--1.91%--ItemPointerSet
               |          |                     |          |          |          |          |          
               |          |                     |          |          |          |           --0.81%--BlockIdSet
               |          |                     |          |          |          |          
               |          |                     |          |          |           --0.80%--PageGetItemId
               |          |                     |          |          |          
               |          |                     |          |           --1.11%--LockBuffer
               |          |                     |          |                     |          
               |          |                     |          |                      --0.55%--LWLockAcquire
               |          |                     |          |          
               |          |                     |          |--2.54%--ItemPointerSet
               |          |                     |          |          |          
               |          |                     |          |           --0.81%--BlockIdSet
               |          |                     |          |          
               |          |                     |          |--1.13%--BufferGetPage
               |          |                     |          |          |          
               |          |                     |          |           --0.74%--BufferGetBlock
               |          |                     |          |          
               |          |                     |          |--0.83%--PageGetItemId
               |          |                     |          |          
               |          |                     |           --0.64%--PageGetItem
               |          |                     |          
               |          |                      --9.51%--ExecStoreBufferHeapTuple
               |          |                                |          
               |          |                                 --7.65%--tts_buffer_heap_store_tuple
               |          |                                           |          
               |          |                                           |--2.47%--IncrBufferRefCount
               |          |                                           |          |          
               |          |                                           |           --2.11%--GetPrivateRefCountEntry
               |          |                                           |                     |          
               |          |                                           |                      --1.54%--hash_search
               |          |                                           |                                |          
               |          |                                           |                                |--0.87%--hash_search_with_hash_value
               |          |                                           |                                |          
               |          |                                           |                                 --0.57%--uint32_hash
               |          |                                           |                                           |          
               |          |                                           |                                            --0.54%--hash_bytes_uint32
               |          |                                           |          
               |          |                                            --2.04%--ReleaseBuffer
               |          |                                                      |          
               |          |                                                       --1.95%--UnpinBuffer
               |          |                                                                 |          
               |          |                                                                 |--1.25%--UnpinBufferNoOwner
               |          |                                                                 |          
               |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
               |          |                                                                            |          
               |          |                                                                             --0.56%--ResourceOwnerForget
               |          |          
               |           --1.83%--ExecFetchSlotHeapTuple
               |                     |          
               |                      --0.83%--tts_buffer_heap_get_heap_tuple
               |          
               |--2.20%--TransactionIdPrecedes
               |          
                --1.18%--MultiXactIdPrecedes

    91.13%     6.28%  postgres  [.] vac_update_datfrozenxid
            |          
            |--84.85%--vac_update_datfrozenxid
            |          |          
            |          |--81.42%--systable_getnext
            |          |          |          
            |          |          |--76.61%--table_scan_getnextslot
            |          |          |          |          
            |          |          |           --73.16%--heap_getnextslot
            |          |          |                     |          
            |          |          |                     |--57.95%--heapgettup_pagemode
            |          |          |                     |          |          
            |          |          |                     |          |--30.65%--heap_fetch_next_buffer
            |          |          |                     |          |          |          
            |          |          |                     |          |          |--29.43%--read_stream_next_buffer
            |          |          |                     |          |          |          |          
            |          |          |                     |          |          |          |--17.13%--WaitReadBuffers
            |          |          |                     |          |          |          |          |          
            |          |          |                     |          |          |          |          |--13.62%--smgrreadv
            |          |          |                     |          |          |          |          |          |          
            |          |          |                     |          |          |          |          |           --13.58%--mdreadv
            |          |          |                     |          |          |          |          |                     |          
            |          |          |                     |          |          |          |          |                      --13.47%--FileReadV
            |          |          |                     |          |          |          |          |                                |          
            |          |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
            |          |          |                     |          |          |          |          |                                           |          
            |          |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
            |          |          |                     |          |          |          |          |                                           |          |          
            |          |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
            |          |          |                     |          |          |          |          |                                           |                     do_syscall_64
            |          |          |                     |          |          |          |          |                                           |                     |          
            |          |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
            |          |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
            |          |          |                     |          |          |          |          |                                           |                                |          
            |          |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
            |          |          |                     |          |          |          |          |                                           |                                           |          
            |          |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
            |          |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
            |          |          |                     |          |          |          |          |                                           |                                                      |          
            |          |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
            |          |          |                     |          |          |          |          |                                           |                                                                 |          
            |          |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
            |          |          |                     |          |          |          |          |                                           |                                                                            |          
            |          |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
            |          |          |                     |          |          |          |          |                                           |          
            |          |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
            |          |          |                     |          |          |          |          |                                                      |          
            |          |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
            |          |          |                     |          |          |          |          |                                                                 |          
            |          |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
            |          |          |                     |          |          |          |          |                                                                            |          
            |          |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
            |          |          |                     |          |          |          |          |                                                                                       |          
            |          |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
            |          |          |                     |          |          |          |          |                                                                                                  |          
            |          |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
            |          |          |                     |          |          |          |          |                                                                                                             |          
            |          |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
            |          |          |                     |          |          |          |          |                                                                                                                        |          
            |          |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
            |          |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
            |          |          |                     |          |          |          |          |                                                                                                                                   |          
            |          |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
            |          |          |                     |          |          |          |          |                                                                                                                                              |          
            |          |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
            |          |          |                     |          |          |          |          |                                                                                                                                                         |          
            |          |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
            |          |          |                     |          |          |          |          |          
            |          |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
            |          |          |                     |          |          |          |          |          
            |          |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
            |          |          |                     |          |          |          |                     |          
            |          |          |                     |          |          |          |                      --1.24%--StartBufferIO
            |          |          |                     |          |          |          |                                |          
            |          |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
            |          |          |                     |          |          |          |          
            |          |          |                     |          |          |           --11.90%--read_stream_look_ahead
            |          |          |                     |          |          |                     |          
            |          |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
            |          |          |                     |          |          |                                |          
            |          |          |                     |          |          |                                 --11.30%--StartReadBuffers
            |          |          |                     |          |          |                                           StartReadBuffersImpl
            |          |          |                     |          |          |                                           |          
            |          |          |                     |          |          |                                            --11.17%--PinBufferForBlock
            |          |          |                     |          |          |                                                      |          
            |          |          |                     |          |          |                                                       --10.94%--BufferAlloc
            |          |          |                     |          |          |                                                                 |          
            |          |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
            |          |          |                     |          |          |                                                                 |          |          
            |          |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
            |          |          |                     |          |          |                                                                 |                     |          
            |          |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
            |          |          |                     |          |          |                                                                 |                     |          |          
            |          |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
            |          |          |                     |          |          |                                                                 |                     |          
            |          |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
            |          |          |                     |          |          |                                                                 |                     |          |          
            |          |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
            |          |          |                     |          |          |                                                                 |                     |                     |          
            |          |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
            |          |          |                     |          |          |                                                                 |                     |                                |          
            |          |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
            |          |          |                     |          |          |                                                                 |                     |          
            |          |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
            |          |          |                     |          |          |                                                                 |          
            |          |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
            |          |          |                     |          |          |                                                                 |          |          
            |          |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
            |          |          |                     |          |          |                                                                 |          
            |          |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
            |          |          |                     |          |          |                                                                 |          |          
            |          |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
            |          |          |                     |          |          |                                                                 |                     |          
            |          |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
            |          |          |                     |          |          |                                                                 |                                |          
            |          |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
            |          |          |                     |          |          |                                                                 |          
            |          |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
            |          |          |                     |          |          |                                                                 |          |          
            |          |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
            |          |          |                     |          |          |                                                                 |          
            |          |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
            |          |          |                     |          |          |                                                                 |          |          
            |          |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
            |          |          |                     |          |          |                                                                 |          
            |          |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
            |          |          |                     |          |          |                                                                 |          
            |          |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
            |          |          |                     |          |          |                                                                            |          
            |          |          |                     |          |          |                                                                             --0.55%--hash_search
            |          |          |                     |          |          |          
            |          |          |                     |          |           --0.84%--ReleaseBuffer
            |          |          |                     |          |                     |          
            |          |          |                     |          |                      --0.79%--UnpinBuffer
            |          |          |                     |          |                                |          
            |          |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
            |          |          |                     |          |          
            |          |          |                     |          |--16.44%--heap_prepare_pagescan
            |          |          |                     |          |          |          
            |          |          |                     |          |          |--14.71%--page_collect_tuples
            |          |          |                     |          |          |          |          
            |          |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
            |          |          |                     |          |          |          |          |          
            |          |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
            |          |          |                     |          |          |          |                     |          
            |          |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
            |          |          |                     |          |          |          |                                |          
            |          |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
            |          |          |                     |          |          |          |          
            |          |          |                     |          |          |          |--1.91%--ItemPointerSet
            |          |          |                     |          |          |          |          |          
            |          |          |                     |          |          |          |           --0.81%--BlockIdSet
            |          |          |                     |          |          |          |          
            |          |          |                     |          |          |           --0.80%--PageGetItemId
            |          |          |                     |          |          |          
            |          |          |                     |          |           --1.11%--LockBuffer
            |          |          |                     |          |                     |          
            |          |          |                     |          |                      --0.55%--LWLockAcquire
            |          |          |                     |          |          
            |          |          |                     |          |--2.54%--ItemPointerSet
            |          |          |                     |          |          |          
            |          |          |                     |          |           --0.81%--BlockIdSet
            |          |          |                     |          |          
            |          |          |                     |          |--1.13%--BufferGetPage
            |          |          |                     |          |          |          
            |          |          |                     |          |           --0.74%--BufferGetBlock
            |          |          |                     |          |          
            |          |          |                     |          |--0.83%--PageGetItemId
            |          |          |                     |          |          
            |          |          |                     |           --0.64%--PageGetItem
            |          |          |                     |          
            |          |          |                      --9.51%--ExecStoreBufferHeapTuple
            |          |          |                                |          
            |          |          |                                 --7.65%--tts_buffer_heap_store_tuple
            |          |          |                                           |          
            |          |          |                                           |--2.47%--IncrBufferRefCount
            |          |          |                                           |          |          
            |          |          |                                           |           --2.11%--GetPrivateRefCountEntry
            |          |          |                                           |                     |          
            |          |          |                                           |                      --1.54%--hash_search
            |          |          |                                           |                                |          
            |          |          |                                           |                                |--0.87%--hash_search_with_hash_value
            |          |          |                                           |                                |          
            |          |          |                                           |                                 --0.57%--uint32_hash
            |          |          |                                           |                                           |          
            |          |          |                                           |                                            --0.54%--hash_bytes_uint32
            |          |          |                                           |          
            |          |          |                                            --2.04%--ReleaseBuffer
            |          |          |                                                      |          
            |          |          |                                                       --1.95%--UnpinBuffer
            |          |          |                                                                 |          
            |          |          |                                                                 |--1.25%--UnpinBufferNoOwner
            |          |          |                                                                 |          
            |          |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
            |          |          |                                                                            |          
            |          |          |                                                                             --0.56%--ResourceOwnerForget
            |          |          |          
            |          |           --1.83%--ExecFetchSlotHeapTuple
            |          |                     |          
            |          |                      --0.83%--tts_buffer_heap_get_heap_tuple
            |          |          
            |          |--2.20%--TransactionIdPrecedes
            |          |          
            |           --1.18%--MultiXactIdPrecedes
            |          
             --6.28%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid

    81.59%     2.65%  postgres  [.] systable_getnext
            |          
            |--78.93%--systable_getnext
            |          |          
            |          |--76.61%--table_scan_getnextslot
            |          |          |          
            |          |           --73.16%--heap_getnextslot
            |          |                     |          
            |          |                     |--57.95%--heapgettup_pagemode
            |          |                     |          |          
            |          |                     |          |--30.65%--heap_fetch_next_buffer
            |          |                     |          |          |          
            |          |                     |          |          |--29.43%--read_stream_next_buffer
            |          |                     |          |          |          |          
            |          |                     |          |          |          |--17.13%--WaitReadBuffers
            |          |                     |          |          |          |          |          
            |          |                     |          |          |          |          |--13.62%--smgrreadv
            |          |                     |          |          |          |          |          |          
            |          |                     |          |          |          |          |           --13.58%--mdreadv
            |          |                     |          |          |          |          |                     |          
            |          |                     |          |          |          |          |                      --13.47%--FileReadV
            |          |                     |          |          |          |          |                                |          
            |          |                     |          |          |          |          |                                 --13.41%--pg_preadv
            |          |                     |          |          |          |          |                                           |          
            |          |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
            |          |                     |          |          |          |          |                                           |          |          
            |          |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
            |          |                     |          |          |          |          |                                           |                     do_syscall_64
            |          |                     |          |          |          |          |                                           |                     |          
            |          |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
            |          |                     |          |          |          |          |                                           |                                __x64_sys_pread64
            |          |                     |          |          |          |          |                                           |                                |          
            |          |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
            |          |                     |          |          |          |          |                                           |                                           |          
            |          |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
            |          |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
            |          |                     |          |          |          |          |                                           |                                                      |          
            |          |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
            |          |                     |          |          |          |          |                                           |                                                                 |          
            |          |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
            |          |                     |          |          |          |          |                                           |                                                                            |          
            |          |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
            |          |                     |          |          |          |          |                                           |          
            |          |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
            |          |                     |          |          |          |          |                                                      |          
            |          |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
            |          |                     |          |          |          |          |                                                                 |          
            |          |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
            |          |                     |          |          |          |          |                                                                            |          
            |          |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
            |          |                     |          |          |          |          |                                                                                       |          
            |          |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
            |          |                     |          |          |          |          |                                                                                                  |          
            |          |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
            |          |                     |          |          |          |          |                                                                                                             |          
            |          |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
            |          |                     |          |          |          |          |                                                                                                                        |          
            |          |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
            |          |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
            |          |                     |          |          |          |          |                                                                                                                                   |          
            |          |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
            |          |                     |          |          |          |          |                                                                                                                                              |          
            |          |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
            |          |                     |          |          |          |          |                                                                                                                                                         |          
            |          |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
            |          |                     |          |          |          |          |          
            |          |                     |          |          |          |          |--1.58%--TerminateBufferIO
            |          |                     |          |          |          |          |          
            |          |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
            |          |                     |          |          |          |                     |          
            |          |                     |          |          |          |                      --1.24%--StartBufferIO
            |          |                     |          |          |          |                                |          
            |          |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
            |          |                     |          |          |          |          
            |          |                     |          |          |           --11.90%--read_stream_look_ahead
            |          |                     |          |          |                     |          
            |          |                     |          |          |                      --11.33%--read_stream_start_pending_read
            |          |                     |          |          |                                |          
            |          |                     |          |          |                                 --11.30%--StartReadBuffers
            |          |                     |          |          |                                           StartReadBuffersImpl
            |          |                     |          |          |                                           |          
            |          |                     |          |          |                                            --11.17%--PinBufferForBlock
            |          |                     |          |          |                                                      |          
            |          |                     |          |          |                                                       --10.94%--BufferAlloc
            |          |                     |          |          |                                                                 |          
            |          |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
            |          |                     |          |          |                                                                 |          |          
            |          |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
            |          |                     |          |          |                                                                 |                     |          
            |          |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
            |          |                     |          |          |                                                                 |                     |          |          
            |          |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
            |          |                     |          |          |                                                                 |                     |          
            |          |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
            |          |                     |          |          |                                                                 |                     |          |          
            |          |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
            |          |                     |          |          |                                                                 |                     |                     |          
            |          |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
            |          |                     |          |          |                                                                 |                     |                                |          
            |          |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
            |          |                     |          |          |                                                                 |                     |          
            |          |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
            |          |                     |          |          |                                                                 |          
            |          |                     |          |          |                                                                 |--0.96%--LWLockAcquire
            |          |                     |          |          |                                                                 |          |          
            |          |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
            |          |                     |          |          |                                                                 |          
            |          |                     |          |          |                                                                 |--0.95%--BufTableHashCode
            |          |                     |          |          |                                                                 |          |          
            |          |                     |          |          |                                                                 |           --0.93%--get_hash_value
            |          |                     |          |          |                                                                 |                     |          
            |          |                     |          |          |                                                                 |                      --0.89%--tag_hash
            |          |                     |          |          |                                                                 |                                |          
            |          |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
            |          |                     |          |          |                                                                 |          
            |          |                     |          |          |                                                                 |--0.77%--BufTableLookup
            |          |                     |          |          |                                                                 |          |          
            |          |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
            |          |                     |          |          |                                                                 |          
            |          |                     |          |          |                                                                 |--0.74%--BufTableInsert
            |          |                     |          |          |                                                                 |          |          
            |          |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
            |          |                     |          |          |                                                                 |          
            |          |                     |          |          |                                                                 |--0.71%--LWLockRelease
            |          |                     |          |          |                                                                 |          
            |          |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
            |          |                     |          |          |                                                                            |          
            |          |                     |          |          |                                                                             --0.55%--hash_search
            |          |                     |          |          |          
            |          |                     |          |           --0.84%--ReleaseBuffer
            |          |                     |          |                     |          
            |          |                     |          |                      --0.79%--UnpinBuffer
            |          |                     |          |                                |          
            |          |                     |          |                                 --0.58%--UnpinBufferNoOwner
            |          |                     |          |          
            |          |                     |          |--16.44%--heap_prepare_pagescan
            |          |                     |          |          |          
            |          |                     |          |          |--14.71%--page_collect_tuples
            |          |                     |          |          |          |          
            |          |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
            |          |                     |          |          |          |          |          
            |          |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
            |          |                     |          |          |          |                     |          
            |          |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
            |          |                     |          |          |          |                                |          
            |          |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
            |          |                     |          |          |          |          
            |          |                     |          |          |          |--1.91%--ItemPointerSet
            |          |                     |          |          |          |          |          
            |          |                     |          |          |          |           --0.81%--BlockIdSet
            |          |                     |          |          |          |          
            |          |                     |          |          |           --0.80%--PageGetItemId
            |          |                     |          |          |          
            |          |                     |          |           --1.11%--LockBuffer
            |          |                     |          |                     |          
            |          |                     |          |                      --0.55%--LWLockAcquire
            |          |                     |          |          
            |          |                     |          |--2.54%--ItemPointerSet
            |          |                     |          |          |          
            |          |                     |          |           --0.81%--BlockIdSet
            |          |                     |          |          
            |          |                     |          |--1.13%--BufferGetPage
            |          |                     |          |          |          
            |          |                     |          |           --0.74%--BufferGetBlock
            |          |                     |          |          
            |          |                     |          |--0.83%--PageGetItemId
            |          |                     |          |          
            |          |                     |           --0.64%--PageGetItem
            |          |                     |          
            |          |                      --9.51%--ExecStoreBufferHeapTuple
            |          |                                |          
            |          |                                 --7.65%--tts_buffer_heap_store_tuple
            |          |                                           |          
            |          |                                           |--2.47%--IncrBufferRefCount
            |          |                                           |          |          
            |          |                                           |           --2.11%--GetPrivateRefCountEntry
            |          |                                           |                     |          
            |          |                                           |                      --1.54%--hash_search
            |          |                                           |                                |          
            |          |                                           |                                |--0.87%--hash_search_with_hash_value
            |          |                                           |                                |          
            |          |                                           |                                 --0.57%--uint32_hash
            |          |                                           |                                           |          
            |          |                                           |                                            --0.54%--hash_bytes_uint32
            |          |                                           |          
            |          |                                            --2.04%--ReleaseBuffer
            |          |                                                      |          
            |          |                                                       --1.95%--UnpinBuffer
            |          |                                                                 |          
            |          |                                                                 |--1.25%--UnpinBufferNoOwner
            |          |                                                                 |          
            |          |                                                                  --0.63%--ResourceOwnerForgetBuffer
            |          |                                                                            |          
            |          |                                                                             --0.56%--ResourceOwnerForget
            |          |          
            |           --1.83%--ExecFetchSlotHeapTuple
            |                     |          
            |                      --0.83%--tts_buffer_heap_get_heap_tuple
            |          
             --2.48%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext

    76.66%     3.26%  postgres  [.] table_scan_getnextslot
            |          
            |--73.40%--table_scan_getnextslot
            |          |          
            |           --73.16%--heap_getnextslot
            |                     |          
            |                     |--57.95%--heapgettup_pagemode
            |                     |          |          
            |                     |          |--30.65%--heap_fetch_next_buffer
            |                     |          |          |          
            |                     |          |          |--29.43%--read_stream_next_buffer
            |                     |          |          |          |          
            |                     |          |          |          |--17.13%--WaitReadBuffers
            |                     |          |          |          |          |          
            |                     |          |          |          |          |--13.62%--smgrreadv
            |                     |          |          |          |          |          |          
            |                     |          |          |          |          |           --13.58%--mdreadv
            |                     |          |          |          |          |                     |          
            |                     |          |          |          |          |                      --13.47%--FileReadV
            |                     |          |          |          |          |                                |          
            |                     |          |          |          |          |                                 --13.41%--pg_preadv
            |                     |          |          |          |          |                                           |          
            |                     |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
            |                     |          |          |          |          |                                           |          |          
            |                     |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
            |                     |          |          |          |          |                                           |                     do_syscall_64
            |                     |          |          |          |          |                                           |                     |          
            |                     |          |          |          |          |                                           |                      --6.66%--x64_sys_call
            |                     |          |          |          |          |                                           |                                __x64_sys_pread64
            |                     |          |          |          |          |                                           |                                |          
            |                     |          |          |          |          |                                           |                                 --6.62%--vfs_read
            |                     |          |          |          |          |                                           |                                           |          
            |                     |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
            |                     |          |          |          |          |                                           |                                                      generic_file_read_iter
            |                     |          |          |          |          |                                           |                                                      |          
            |                     |          |          |          |          |                                           |                                                       --6.53%--filemap_read
            |                     |          |          |          |          |                                           |                                                                 |          
            |                     |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
            |                     |          |          |          |          |                                           |                                                                            |          
            |                     |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
            |                     |          |          |          |          |                                           |          
            |                     |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
            |                     |          |          |          |          |                                                      |          
            |                     |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
            |                     |          |          |          |          |                                                                 |          
            |                     |          |          |          |          |                                                                  --6.64%--do_syscall_64
            |                     |          |          |          |          |                                                                            |          
            |                     |          |          |          |          |                                                                             --6.58%--x64_sys_call
            |                     |          |          |          |          |                                                                                       |          
            |                     |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
            |                     |          |          |          |          |                                                                                                  |          
            |                     |          |          |          |          |                                                                                                   --6.55%--vfs_readv
            |                     |          |          |          |          |                                                                                                             |          
            |                     |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
            |                     |          |          |          |          |                                                                                                                        |          
            |                     |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
            |                     |          |          |          |          |                                                                                                                                   generic_file_read_iter
            |                     |          |          |          |          |                                                                                                                                   |          
            |                     |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
            |                     |          |          |          |          |                                                                                                                                              |          
            |                     |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
            |                     |          |          |          |          |                                                                                                                                                         |          
            |                     |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
            |                     |          |          |          |          |          
            |                     |          |          |          |          |--1.58%--TerminateBufferIO
            |                     |          |          |          |          |          
            |                     |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
            |                     |          |          |          |                     |          
            |                     |          |          |          |                      --1.24%--StartBufferIO
            |                     |          |          |          |                                |          
            |                     |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
            |                     |          |          |          |          
            |                     |          |          |           --11.90%--read_stream_look_ahead
            |                     |          |          |                     |          
            |                     |          |          |                      --11.33%--read_stream_start_pending_read
            |                     |          |          |                                |          
            |                     |          |          |                                 --11.30%--StartReadBuffers
            |                     |          |          |                                           StartReadBuffersImpl
            |                     |          |          |                                           |          
            |                     |          |          |                                            --11.17%--PinBufferForBlock
            |                     |          |          |                                                      |          
            |                     |          |          |                                                       --10.94%--BufferAlloc
            |                     |          |          |                                                                 |          
            |                     |          |          |                                                                 |--5.08%--GetVictimBuffer
            |                     |          |          |                                                                 |          |          
            |                     |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
            |                     |          |          |                                                                 |                     |          
            |                     |          |          |                                                                 |                     |--0.95%--BufTableDelete
            |                     |          |          |                                                                 |                     |          |          
            |                     |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
            |                     |          |          |                                                                 |                     |          
            |                     |          |          |                                                                 |                     |--0.93%--BufTableHashCode
            |                     |          |          |                                                                 |                     |          |          
            |                     |          |          |                                                                 |                     |           --0.90%--get_hash_value
            |                     |          |          |                                                                 |                     |                     |          
            |                     |          |          |                                                                 |                     |                      --0.84%--tag_hash
            |                     |          |          |                                                                 |                     |                                |          
            |                     |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
            |                     |          |          |                                                                 |                     |          
            |                     |          |          |                                                                 |                      --0.56%--LWLockAcquire
            |                     |          |          |                                                                 |          
            |                     |          |          |                                                                 |--0.96%--LWLockAcquire
            |                     |          |          |                                                                 |          |          
            |                     |          |          |                                                                 |           --0.80%--LWLockAttemptLock
            |                     |          |          |                                                                 |          
            |                     |          |          |                                                                 |--0.95%--BufTableHashCode
            |                     |          |          |                                                                 |          |          
            |                     |          |          |                                                                 |           --0.93%--get_hash_value
            |                     |          |          |                                                                 |                     |          
            |                     |          |          |                                                                 |                      --0.89%--tag_hash
            |                     |          |          |                                                                 |                                |          
            |                     |          |          |                                                                 |                                 --0.83%--hash_bytes
            |                     |          |          |                                                                 |          
            |                     |          |          |                                                                 |--0.77%--BufTableLookup
            |                     |          |          |                                                                 |          |          
            |                     |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
            |                     |          |          |                                                                 |          
            |                     |          |          |                                                                 |--0.74%--BufTableInsert
            |                     |          |          |                                                                 |          |          
            |                     |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
            |                     |          |          |                                                                 |          
            |                     |          |          |                                                                 |--0.71%--LWLockRelease
            |                     |          |          |                                                                 |          
            |                     |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
            |                     |          |          |                                                                            |          
            |                     |          |          |                                                                             --0.55%--hash_search
            |                     |          |          |          
            |                     |          |           --0.84%--ReleaseBuffer
            |                     |          |                     |          
            |                     |          |                      --0.79%--UnpinBuffer
            |                     |          |                                |          
            |                     |          |                                 --0.58%--UnpinBufferNoOwner
            |                     |          |          
            |                     |          |--16.44%--heap_prepare_pagescan
            |                     |          |          |          
            |                     |          |          |--14.71%--page_collect_tuples
            |                     |          |          |          |          
            |                     |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
            |                     |          |          |          |          |          
            |                     |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
            |                     |          |          |          |                     |          
            |                     |          |          |          |                      --2.41%--XidInMVCCSnapshot
            |                     |          |          |          |                                |          
            |                     |          |          |          |                                 --1.10%--TransactionIdPrecedes
            |                     |          |          |          |          
            |                     |          |          |          |--1.91%--ItemPointerSet
            |                     |          |          |          |          |          
            |                     |          |          |          |           --0.81%--BlockIdSet
            |                     |          |          |          |          
            |                     |          |          |           --0.80%--PageGetItemId
            |                     |          |          |          
            |                     |          |           --1.11%--LockBuffer
            |                     |          |                     |          
            |                     |          |                      --0.55%--LWLockAcquire
            |                     |          |          
            |                     |          |--2.54%--ItemPointerSet
            |                     |          |          |          
            |                     |          |           --0.81%--BlockIdSet
            |                     |          |          
            |                     |          |--1.13%--BufferGetPage
            |                     |          |          |          
            |                     |          |           --0.74%--BufferGetBlock
            |                     |          |          
            |                     |          |--0.83%--PageGetItemId
            |                     |          |          
            |                     |           --0.64%--PageGetItem
            |                     |          
            |                      --9.51%--ExecStoreBufferHeapTuple
            |                                |          
            |                                 --7.65%--tts_buffer_heap_store_tuple
            |                                           |          
            |                                           |--2.47%--IncrBufferRefCount
            |                                           |          |          
            |                                           |           --2.11%--GetPrivateRefCountEntry
            |                                           |                     |          
            |                                           |                      --1.54%--hash_search
            |                                           |                                |          
            |                                           |                                |--0.87%--hash_search_with_hash_value
            |                                           |                                |          
            |                                           |                                 --0.57%--uint32_hash
            |                                           |                                           |          
            |                                           |                                            --0.54%--hash_bytes_uint32
            |                                           |          
            |                                            --2.04%--ReleaseBuffer
            |                                                      |          
            |                                                       --1.95%--UnpinBuffer
            |                                                                 |          
            |                                                                 |--1.25%--UnpinBufferNoOwner
            |                                                                 |          
            |                                                                  --0.63%--ResourceOwnerForgetBuffer
            |                                                                            |          
            |                                                                             --0.56%--ResourceOwnerForget
            |          
             --3.22%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       |          
                        --3.21%--systable_getnext
                                  table_scan_getnextslot

    73.58%     5.93%  postgres  [.] heap_getnextslot
            |          
            |--67.65%--heap_getnextslot
            |          |          
            |          |--57.95%--heapgettup_pagemode
            |          |          |          
            |          |          |--30.65%--heap_fetch_next_buffer
            |          |          |          |          
            |          |          |          |--29.43%--read_stream_next_buffer
            |          |          |          |          |          
            |          |          |          |          |--17.13%--WaitReadBuffers
            |          |          |          |          |          |          
            |          |          |          |          |          |--13.62%--smgrreadv
            |          |          |          |          |          |          |          
            |          |          |          |          |          |           --13.58%--mdreadv
            |          |          |          |          |          |                     |          
            |          |          |          |          |          |                      --13.47%--FileReadV
            |          |          |          |          |          |                                |          
            |          |          |          |          |          |                                 --13.41%--pg_preadv
            |          |          |          |          |          |                                           |          
            |          |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
            |          |          |          |          |          |                                           |          |          
            |          |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
            |          |          |          |          |          |                                           |                     do_syscall_64
            |          |          |          |          |          |                                           |                     |          
            |          |          |          |          |          |                                           |                      --6.66%--x64_sys_call
            |          |          |          |          |          |                                           |                                __x64_sys_pread64
            |          |          |          |          |          |                                           |                                |          
            |          |          |          |          |          |                                           |                                 --6.62%--vfs_read
            |          |          |          |          |          |                                           |                                           |          
            |          |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
            |          |          |          |          |          |                                           |                                                      generic_file_read_iter
            |          |          |          |          |          |                                           |                                                      |          
            |          |          |          |          |          |                                           |                                                       --6.53%--filemap_read
            |          |          |          |          |          |                                           |                                                                 |          
            |          |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
            |          |          |          |          |          |                                           |                                                                            |          
            |          |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
            |          |          |          |          |          |                                           |          
            |          |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
            |          |          |          |          |          |                                                      |          
            |          |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
            |          |          |          |          |          |                                                                 |          
            |          |          |          |          |          |                                                                  --6.64%--do_syscall_64
            |          |          |          |          |          |                                                                            |          
            |          |          |          |          |          |                                                                             --6.58%--x64_sys_call
            |          |          |          |          |          |                                                                                       |          
            |          |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
            |          |          |          |          |          |                                                                                                  |          
            |          |          |          |          |          |                                                                                                   --6.55%--vfs_readv
            |          |          |          |          |          |                                                                                                             |          
            |          |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
            |          |          |          |          |          |                                                                                                                        |          
            |          |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
            |          |          |          |          |          |                                                                                                                                   generic_file_read_iter
            |          |          |          |          |          |                                                                                                                                   |          
            |          |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
            |          |          |          |          |          |                                                                                                                                              |          
            |          |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
            |          |          |          |          |          |                                                                                                                                                         |          
            |          |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
            |          |          |          |          |          |          
            |          |          |          |          |          |--1.58%--TerminateBufferIO
            |          |          |          |          |          |          
            |          |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
            |          |          |          |          |                     |          
            |          |          |          |          |                      --1.24%--StartBufferIO
            |          |          |          |          |                                |          
            |          |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
            |          |          |          |          |          
            |          |          |          |           --11.90%--read_stream_look_ahead
            |          |          |          |                     |          
            |          |          |          |                      --11.33%--read_stream_start_pending_read
            |          |          |          |                                |          
            |          |          |          |                                 --11.30%--StartReadBuffers
            |          |          |          |                                           StartReadBuffersImpl
            |          |          |          |                                           |          
            |          |          |          |                                            --11.17%--PinBufferForBlock
            |          |          |          |                                                      |          
            |          |          |          |                                                       --10.94%--BufferAlloc
            |          |          |          |                                                                 |          
            |          |          |          |                                                                 |--5.08%--GetVictimBuffer
            |          |          |          |                                                                 |          |          
            |          |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
            |          |          |          |                                                                 |                     |          
            |          |          |          |                                                                 |                     |--0.95%--BufTableDelete
            |          |          |          |                                                                 |                     |          |          
            |          |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
            |          |          |          |                                                                 |                     |          
            |          |          |          |                                                                 |                     |--0.93%--BufTableHashCode
            |          |          |          |                                                                 |                     |          |          
            |          |          |          |                                                                 |                     |           --0.90%--get_hash_value
            |          |          |          |                                                                 |                     |                     |          
            |          |          |          |                                                                 |                     |                      --0.84%--tag_hash
            |          |          |          |                                                                 |                     |                                |          
            |          |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
            |          |          |          |                                                                 |                     |          
            |          |          |          |                                                                 |                      --0.56%--LWLockAcquire
            |          |          |          |                                                                 |          
            |          |          |          |                                                                 |--0.96%--LWLockAcquire
            |          |          |          |                                                                 |          |          
            |          |          |          |                                                                 |           --0.80%--LWLockAttemptLock
            |          |          |          |                                                                 |          
            |          |          |          |                                                                 |--0.95%--BufTableHashCode
            |          |          |          |                                                                 |          |          
            |          |          |          |                                                                 |           --0.93%--get_hash_value
            |          |          |          |                                                                 |                     |          
            |          |          |          |                                                                 |                      --0.89%--tag_hash
            |          |          |          |                                                                 |                                |          
            |          |          |          |                                                                 |                                 --0.83%--hash_bytes
            |          |          |          |                                                                 |          
            |          |          |          |                                                                 |--0.77%--BufTableLookup
            |          |          |          |                                                                 |          |          
            |          |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
            |          |          |          |                                                                 |          
            |          |          |          |                                                                 |--0.74%--BufTableInsert
            |          |          |          |                                                                 |          |          
            |          |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
            |          |          |          |                                                                 |          
            |          |          |          |                                                                 |--0.71%--LWLockRelease
            |          |          |          |                                                                 |          
            |          |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
            |          |          |          |                                                                            |          
            |          |          |          |                                                                             --0.55%--hash_search
            |          |          |          |          
            |          |          |           --0.84%--ReleaseBuffer
            |          |          |                     |          
            |          |          |                      --0.79%--UnpinBuffer
            |          |          |                                |          
            |          |          |                                 --0.58%--UnpinBufferNoOwner
            |          |          |          
            |          |          |--16.44%--heap_prepare_pagescan
            |          |          |          |          
            |          |          |          |--14.71%--page_collect_tuples
            |          |          |          |          |          
            |          |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
            |          |          |          |          |          |          
            |          |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
            |          |          |          |          |                     |          
            |          |          |          |          |                      --2.41%--XidInMVCCSnapshot
            |          |          |          |          |                                |          
            |          |          |          |          |                                 --1.10%--TransactionIdPrecedes
            |          |          |          |          |          
            |          |          |          |          |--1.91%--ItemPointerSet
            |          |          |          |          |          |          
            |          |          |          |          |           --0.81%--BlockIdSet
            |          |          |          |          |          
            |          |          |          |           --0.80%--PageGetItemId
            |          |          |          |          
            |          |          |           --1.11%--LockBuffer
            |          |          |                     |          
            |          |          |                      --0.55%--LWLockAcquire
            |          |          |          
            |          |          |--2.54%--ItemPointerSet
            |          |          |          |          
            |          |          |           --0.81%--BlockIdSet
            |          |          |          
            |          |          |--1.13%--BufferGetPage
            |          |          |          |          
            |          |          |           --0.74%--BufferGetBlock
            |          |          |          
            |          |          |--0.83%--PageGetItemId
            |          |          |          
            |          |           --0.64%--PageGetItem
            |          |          
            |           --9.51%--ExecStoreBufferHeapTuple
            |                     |          
            |                      --7.65%--tts_buffer_heap_store_tuple
            |                                |          
            |                                |--2.47%--IncrBufferRefCount
            |                                |          |          
            |                                |           --2.11%--GetPrivateRefCountEntry
            |                                |                     |          
            |                                |                      --1.54%--hash_search
            |                                |                                |          
            |                                |                                |--0.87%--hash_search_with_hash_value
            |                                |                                |          
            |                                |                                 --0.57%--uint32_hash
            |                                |                                           |          
            |                                |                                            --0.54%--hash_bytes_uint32
            |                                |          
            |                                 --2.04%--ReleaseBuffer
            |                                           |          
            |                                            --1.95%--UnpinBuffer
            |                                                      |          
            |                                                      |--1.25%--UnpinBufferNoOwner
            |                                                      |          
            |                                                       --0.63%--ResourceOwnerForgetBuffer
            |                                                                 |          
            |                                                                  --0.56%--ResourceOwnerForget
            |          
             --5.54%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       |          
                        --5.51%--table_scan_getnextslot
                                  heap_getnextslot

    58.21%     5.86%  postgres  [.] heapgettup_pagemode
            |          
            |--52.35%--heapgettup_pagemode
            |          |          
            |          |--30.65%--heap_fetch_next_buffer
            |          |          |          
            |          |          |--29.43%--read_stream_next_buffer
            |          |          |          |          
            |          |          |          |--17.13%--WaitReadBuffers
            |          |          |          |          |          
            |          |          |          |          |--13.62%--smgrreadv
            |          |          |          |          |          |          
            |          |          |          |          |           --13.58%--mdreadv
            |          |          |          |          |                     |          
            |          |          |          |          |                      --13.47%--FileReadV
            |          |          |          |          |                                |          
            |          |          |          |          |                                 --13.41%--pg_preadv
            |          |          |          |          |                                           |          
            |          |          |          |          |                                           |--6.71%--__libc_pread64 (inlined)
            |          |          |          |          |                                           |          |          
            |          |          |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
            |          |          |          |          |                                           |                     do_syscall_64
            |          |          |          |          |                                           |                     |          
            |          |          |          |          |                                           |                      --6.66%--x64_sys_call
            |          |          |          |          |                                           |                                __x64_sys_pread64
            |          |          |          |          |                                           |                                |          
            |          |          |          |          |                                           |                                 --6.62%--vfs_read
            |          |          |          |          |                                           |                                           |          
            |          |          |          |          |                                           |                                            --6.57%--ext4_file_read_iter
            |          |          |          |          |                                           |                                                      generic_file_read_iter
            |          |          |          |          |                                           |                                                      |          
            |          |          |          |          |                                           |                                                       --6.53%--filemap_read
            |          |          |          |          |                                           |                                                                 |          
            |          |          |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
            |          |          |          |          |                                           |                                                                            |          
            |          |          |          |          |                                           |                                                                             --5.45%--_copy_to_iter
            |          |          |          |          |                                           |          
            |          |          |          |          |                                            --6.70%--__GI_preadv64 (inlined)
            |          |          |          |          |                                                      |          
            |          |          |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
            |          |          |          |          |                                                                 |          
            |          |          |          |          |                                                                  --6.64%--do_syscall_64
            |          |          |          |          |                                                                            |          
            |          |          |          |          |                                                                             --6.58%--x64_sys_call
            |          |          |          |          |                                                                                       |          
            |          |          |          |          |                                                                                        --6.57%--__x64_sys_preadv
            |          |          |          |          |                                                                                                  |          
            |          |          |          |          |                                                                                                   --6.55%--vfs_readv
            |          |          |          |          |                                                                                                             |          
            |          |          |          |          |                                                                                                              --6.48%--do_iter_readv_writev
            |          |          |          |          |                                                                                                                        |          
            |          |          |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
            |          |          |          |          |                                                                                                                                   generic_file_read_iter
            |          |          |          |          |                                                                                                                                   |          
            |          |          |          |          |                                                                                                                                    --6.46%--filemap_read
            |          |          |          |          |                                                                                                                                              |          
            |          |          |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
            |          |          |          |          |                                                                                                                                                         |          
            |          |          |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
            |          |          |          |          |          
            |          |          |          |          |--1.58%--TerminateBufferIO
            |          |          |          |          |          
            |          |          |          |           --1.30%--WaitReadBuffersCanStartIO
            |          |          |          |                     |          
            |          |          |          |                      --1.24%--StartBufferIO
            |          |          |          |                                |          
            |          |          |          |                                 --0.55%--ResourceOwnerEnlarge
            |          |          |          |          
            |          |          |           --11.90%--read_stream_look_ahead
            |          |          |                     |          
            |          |          |                      --11.33%--read_stream_start_pending_read
            |          |          |                                |          
            |          |          |                                 --11.30%--StartReadBuffers
            |          |          |                                           StartReadBuffersImpl
            |          |          |                                           |          
            |          |          |                                            --11.17%--PinBufferForBlock
            |          |          |                                                      |          
            |          |          |                                                       --10.94%--BufferAlloc
            |          |          |                                                                 |          
            |          |          |                                                                 |--5.08%--GetVictimBuffer
            |          |          |                                                                 |          |          
            |          |          |                                                                 |           --3.45%--InvalidateVictimBuffer
            |          |          |                                                                 |                     |          
            |          |          |                                                                 |                     |--0.95%--BufTableDelete
            |          |          |                                                                 |                     |          |          
            |          |          |                                                                 |                     |           --0.91%--hash_search_with_hash_value
            |          |          |                                                                 |                     |          
            |          |          |                                                                 |                     |--0.93%--BufTableHashCode
            |          |          |                                                                 |                     |          |          
            |          |          |                                                                 |                     |           --0.90%--get_hash_value
            |          |          |                                                                 |                     |                     |          
            |          |          |                                                                 |                     |                      --0.84%--tag_hash
            |          |          |                                                                 |                     |                                |          
            |          |          |                                                                 |                     |                                 --0.81%--hash_bytes
            |          |          |                                                                 |                     |          
            |          |          |                                                                 |                      --0.56%--LWLockAcquire
            |          |          |                                                                 |          
            |          |          |                                                                 |--0.96%--LWLockAcquire
            |          |          |                                                                 |          |          
            |          |          |                                                                 |           --0.80%--LWLockAttemptLock
            |          |          |                                                                 |          
            |          |          |                                                                 |--0.95%--BufTableHashCode
            |          |          |                                                                 |          |          
            |          |          |                                                                 |           --0.93%--get_hash_value
            |          |          |                                                                 |                     |          
            |          |          |                                                                 |                      --0.89%--tag_hash
            |          |          |                                                                 |                                |          
            |          |          |                                                                 |                                 --0.83%--hash_bytes
            |          |          |                                                                 |          
            |          |          |                                                                 |--0.77%--BufTableLookup
            |          |          |                                                                 |          |          
            |          |          |                                                                 |           --0.71%--hash_search_with_hash_value
            |          |          |                                                                 |          
            |          |          |                                                                 |--0.74%--BufTableInsert
            |          |          |                                                                 |          |          
            |          |          |                                                                 |           --0.67%--hash_search_with_hash_value
            |          |          |                                                                 |          
            |          |          |                                                                 |--0.71%--LWLockRelease
            |          |          |                                                                 |          
            |          |          |                                                                  --0.71%--ReservePrivateRefCountEntry
            |          |          |                                                                            |          
            |          |          |                                                                             --0.55%--hash_search
            |          |          |          
            |          |           --0.84%--ReleaseBuffer
            |          |                     |          
            |          |                      --0.79%--UnpinBuffer
            |          |                                |          
            |          |                                 --0.58%--UnpinBufferNoOwner
            |          |          
            |          |--16.44%--heap_prepare_pagescan
            |          |          |          
            |          |          |--14.71%--page_collect_tuples
            |          |          |          |          
            |          |          |          |--6.82%--HeapTupleSatisfiesVisibility
            |          |          |          |          |          
            |          |          |          |           --4.85%--HeapTupleSatisfiesMVCC
            |          |          |          |                     |          
            |          |          |          |                      --2.41%--XidInMVCCSnapshot
            |          |          |          |                                |          
            |          |          |          |                                 --1.10%--TransactionIdPrecedes
            |          |          |          |          
            |          |          |          |--1.91%--ItemPointerSet
            |          |          |          |          |          
            |          |          |          |           --0.81%--BlockIdSet
            |          |          |          |          
            |          |          |           --0.80%--PageGetItemId
            |          |          |          
            |          |           --1.11%--LockBuffer
            |          |                     |          
            |          |                      --0.55%--LWLockAcquire
            |          |          
            |          |--2.54%--ItemPointerSet
            |          |          |          
            |          |           --0.81%--BlockIdSet
            |          |          
            |          |--1.13%--BufferGetPage
            |          |          |          
            |          |           --0.74%--BufferGetBlock
            |          |          
            |          |--0.83%--PageGetItemId
            |          |          
            |           --0.64%--PageGetItem
            |          
             --5.60%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       table_scan_getnextslot
                       heap_getnextslot
                       heapgettup_pagemode

    30.66%     0.23%  postgres  [.] heap_fetch_next_buffer
            |          
             --30.43%--heap_fetch_next_buffer
                       |          
                       |--29.43%--read_stream_next_buffer
                       |          |          
                       |          |--17.13%--WaitReadBuffers
                       |          |          |          
                       |          |          |--13.62%--smgrreadv
                       |          |          |          |          
                       |          |          |           --13.58%--mdreadv
                       |          |          |                     |          
                       |          |          |                      --13.47%--FileReadV
                       |          |          |                                |          
                       |          |          |                                 --13.41%--pg_preadv
                       |          |          |                                           |          
                       |          |          |                                           |--6.71%--__libc_pread64 (inlined)
                       |          |          |                                           |          |          
                       |          |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
                       |          |          |                                           |                     do_syscall_64
                       |          |          |                                           |                     |          
                       |          |          |                                           |                      --6.66%--x64_sys_call
                       |          |          |                                           |                                __x64_sys_pread64
                       |          |          |                                           |                                |          
                       |          |          |                                           |                                 --6.62%--vfs_read
                       |          |          |                                           |                                           |          
                       |          |          |                                           |                                            --6.57%--ext4_file_read_iter
                       |          |          |                                           |                                                      generic_file_read_iter
                       |          |          |                                           |                                                      |          
                       |          |          |                                           |                                                       --6.53%--filemap_read
                       |          |          |                                           |                                                                 |          
                       |          |          |                                           |                                                                  --5.57%--copy_page_to_iter
                       |          |          |                                           |                                                                            |          
                       |          |          |                                           |                                                                             --5.45%--_copy_to_iter
                       |          |          |                                           |          
                       |          |          |                                            --6.70%--__GI_preadv64 (inlined)
                       |          |          |                                                      |          
                       |          |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
                       |          |          |                                                                 |          
                       |          |          |                                                                  --6.64%--do_syscall_64
                       |          |          |                                                                            |          
                       |          |          |                                                                             --6.58%--x64_sys_call
                       |          |          |                                                                                       |          
                       |          |          |                                                                                        --6.57%--__x64_sys_preadv
                       |          |          |                                                                                                  |          
                       |          |          |                                                                                                   --6.55%--vfs_readv
                       |          |          |                                                                                                             |          
                       |          |          |                                                                                                              --6.48%--do_iter_readv_writev
                       |          |          |                                                                                                                        |          
                       |          |          |                                                                                                                         --6.47%--ext4_file_read_iter
                       |          |          |                                                                                                                                   generic_file_read_iter
                       |          |          |                                                                                                                                   |          
                       |          |          |                                                                                                                                    --6.46%--filemap_read
                       |          |          |                                                                                                                                              |          
                       |          |          |                                                                                                                                               --5.72%--copy_page_to_iter
                       |          |          |                                                                                                                                                         |          
                       |          |          |                                                                                                                                                          --5.63%--_copy_to_iter
                       |          |          |          
                       |          |          |--1.58%--TerminateBufferIO
                       |          |          |          
                       |          |           --1.30%--WaitReadBuffersCanStartIO
                       |          |                     |          
                       |          |                      --1.24%--StartBufferIO
                       |          |                                |          
                       |          |                                 --0.55%--ResourceOwnerEnlarge
                       |          |          
                       |           --11.90%--read_stream_look_ahead
                       |                     |          
                       |                      --11.33%--read_stream_start_pending_read
                       |                                |          
                       |                                 --11.30%--StartReadBuffers
                       |                                           StartReadBuffersImpl
                       |                                           |          
                       |                                            --11.17%--PinBufferForBlock
                       |                                                      |          
                       |                                                       --10.94%--BufferAlloc
                       |                                                                 |          
                       |                                                                 |--5.08%--GetVictimBuffer
                       |                                                                 |          |          
                       |                                                                 |           --3.45%--InvalidateVictimBuffer
                       |                                                                 |                     |          
                       |                                                                 |                     |--0.95%--BufTableDelete
                       |                                                                 |                     |          |          
                       |                                                                 |                     |           --0.91%--hash_search_with_hash_value
                       |                                                                 |                     |          
                       |                                                                 |                     |--0.93%--BufTableHashCode
                       |                                                                 |                     |          |          
                       |                                                                 |                     |           --0.90%--get_hash_value
                       |                                                                 |                     |                     |          
                       |                                                                 |                     |                      --0.84%--tag_hash
                       |                                                                 |                     |                                |          
                       |                                                                 |                     |                                 --0.81%--hash_bytes
                       |                                                                 |                     |          
                       |                                                                 |                      --0.56%--LWLockAcquire
                       |                                                                 |          
                       |                                                                 |--0.96%--LWLockAcquire
                       |                                                                 |          |          
                       |                                                                 |           --0.80%--LWLockAttemptLock
                       |                                                                 |          
                       |                                                                 |--0.95%--BufTableHashCode
                       |                                                                 |          |          
                       |                                                                 |           --0.93%--get_hash_value
                       |                                                                 |                     |          
                       |                                                                 |                      --0.89%--tag_hash
                       |                                                                 |                                |          
                       |                                                                 |                                 --0.83%--hash_bytes
                       |                                                                 |          
                       |                                                                 |--0.77%--BufTableLookup
                       |                                                                 |          |          
                       |                                                                 |           --0.71%--hash_search_with_hash_value
                       |                                                                 |          
                       |                                                                 |--0.74%--BufTableInsert
                       |                                                                 |          |          
                       |                                                                 |           --0.67%--hash_search_with_hash_value
                       |                                                                 |          
                       |                                                                 |--0.71%--LWLockRelease
                       |                                                                 |          
                       |                                                                  --0.71%--ReservePrivateRefCountEntry
                       |                                                                            |          
                       |                                                                             --0.55%--hash_search
                       |          
                        --0.84%--ReleaseBuffer
                                  |          
                                   --0.79%--UnpinBuffer
                                             |          
                                              --0.58%--UnpinBufferNoOwner

    29.44%     0.39%  postgres  [.] read_stream_next_buffer
            |          
             --29.06%--read_stream_next_buffer
                       |          
                       |--17.13%--WaitReadBuffers
                       |          |          
                       |          |--13.62%--smgrreadv
                       |          |          |          
                       |          |           --13.58%--mdreadv
                       |          |                     |          
                       |          |                      --13.47%--FileReadV
                       |          |                                |          
                       |          |                                 --13.41%--pg_preadv
                       |          |                                           |          
                       |          |                                           |--6.71%--__libc_pread64 (inlined)
                       |          |                                           |          |          
                       |          |                                           |           --6.68%--entry_SYSCALL_64_after_hwframe
                       |          |                                           |                     do_syscall_64
                       |          |                                           |                     |          
                       |          |                                           |                      --6.66%--x64_sys_call
                       |          |                                           |                                __x64_sys_pread64
                       |          |                                           |                                |          
                       |          |                                           |                                 --6.62%--vfs_read
                       |          |                                           |                                           |          
                       |          |                                           |                                            --6.57%--ext4_file_read_iter
                       |          |                                           |                                                      generic_file_read_iter
                       |          |                                           |                                                      |          
                       |          |                                           |                                                       --6.53%--filemap_read
                       |          |                                           |                                                                 |          
                       |          |                                           |                                                                  --5.57%--copy_page_to_iter
                       |          |                                           |                                                                            |          
                       |          |                                           |                                                                             --5.45%--_copy_to_iter
                       |          |                                           |          
                       |          |                                            --6.70%--__GI_preadv64 (inlined)
                       |          |                                                      |          
                       |          |                                                       --6.64%--entry_SYSCALL_64_after_hwframe
                       |          |                                                                 |          
                       |          |                                                                  --6.64%--do_syscall_64
                       |          |                                                                            |          
                       |          |                                                                             --6.58%--x64_sys_call
                       |          |                                                                                       |          
                       |          |                                                                                        --6.57%--__x64_sys_preadv
                       |          |                                                                                                  |          
                       |          |                                                                                                   --6.55%--vfs_readv
                       |          |                                                                                                             |          
                       |          |                                                                                                              --6.48%--do_iter_readv_writev
                       |          |                                                                                                                        |          
                       |          |                                                                                                                         --6.47%--ext4_file_read_iter
                       |          |                                                                                                                                   generic_file_read_iter
                       |          |                                                                                                                                   |          
                       |          |                                                                                                                                    --6.46%--filemap_read
                       |          |                                                                                                                                              |          
                       |          |                                                                                                                                               --5.72%--copy_page_to_iter
                       |          |                                                                                                                                                         |          
                       |          |                                                                                                                                                          --5.63%--_copy_to_iter
                       |          |          
                       |          |--1.58%--TerminateBufferIO
                       |          |          
                       |           --1.30%--WaitReadBuffersCanStartIO
                       |                     |          
                       |                      --1.24%--StartBufferIO
                       |                                |          
                       |                                 --0.55%--ResourceOwnerEnlarge
                       |          
                        --11.90%--read_stream_look_ahead
                                  |          
                                   --11.33%--read_stream_start_pending_read
                                             |          
                                              --11.30%--StartReadBuffers
                                                        StartReadBuffersImpl
                                                        |          
                                                         --11.17%--PinBufferForBlock
                                                                   |          
                                                                    --10.94%--BufferAlloc
                                                                              |          
                                                                              |--5.08%--GetVictimBuffer
                                                                              |          |          
                                                                              |           --3.45%--InvalidateVictimBuffer
                                                                              |                     |          
                                                                              |                     |--0.95%--BufTableDelete
                                                                              |                     |          |          
                                                                              |                     |           --0.91%--hash_search_with_hash_value
                                                                              |                     |          
                                                                              |                     |--0.93%--BufTableHashCode
                                                                              |                     |          |          
                                                                              |                     |           --0.90%--get_hash_value
                                                                              |                     |                     |          
                                                                              |                     |                      --0.84%--tag_hash
                                                                              |                     |                                |          
                                                                              |                     |                                 --0.81%--hash_bytes
                                                                              |                     |          
                                                                              |                      --0.56%--LWLockAcquire
                                                                              |          
                                                                              |--0.96%--LWLockAcquire
                                                                              |          |          
                                                                              |           --0.80%--LWLockAttemptLock
                                                                              |          
                                                                              |--0.95%--BufTableHashCode
                                                                              |          |          
                                                                              |           --0.93%--get_hash_value
                                                                              |                     |          
                                                                              |                      --0.89%--tag_hash
                                                                              |                                |          
                                                                              |                                 --0.83%--hash_bytes
                                                                              |          
                                                                              |--0.77%--BufTableLookup
                                                                              |          |          
                                                                              |           --0.71%--hash_search_with_hash_value
                                                                              |          
                                                                              |--0.74%--BufTableInsert
                                                                              |          |          
                                                                              |           --0.67%--hash_search_with_hash_value
                                                                              |          
                                                                              |--0.71%--LWLockRelease
                                                                              |          
                                                                               --0.71%--ReservePrivateRefCountEntry
                                                                                         |          
                                                                                          --0.55%--hash_search

    16.46%     0.21%  postgres  [.] heap_prepare_pagescan
            |          
             --16.24%--heap_prepare_pagescan
                       |          
                       |--14.71%--page_collect_tuples
                       |          |          
                       |          |--6.82%--HeapTupleSatisfiesVisibility
                       |          |          |          
                       |          |           --4.85%--HeapTupleSatisfiesMVCC
                       |          |                     |          
                       |          |                      --2.41%--XidInMVCCSnapshot
                       |          |                                |          
                       |          |                                 --1.10%--TransactionIdPrecedes
                       |          |          
                       |          |--1.91%--ItemPointerSet
                       |          |          |          
                       |          |           --0.81%--BlockIdSet
                       |          |          
                       |           --0.80%--PageGetItemId
                       |          
                        --1.11%--LockBuffer
                                  |          
                                   --0.55%--LWLockAcquire

    14.73%     4.85%  postgres  [.] page_collect_tuples
            |          
            |--9.88%--page_collect_tuples
            |          |          
            |          |--6.82%--HeapTupleSatisfiesVisibility
            |          |          |          
            |          |           --4.85%--HeapTupleSatisfiesMVCC
            |          |                     |          
            |          |                      --2.41%--XidInMVCCSnapshot
            |          |                                |          
            |          |                                 --1.10%--TransactionIdPrecedes
            |          |          
            |          |--1.91%--ItemPointerSet
            |          |          |          
            |          |           --0.81%--BlockIdSet
            |          |          
            |           --0.80%--PageGetItemId
            |          
             --4.83%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       table_scan_getnextslot
                       heap_getnextslot
                       heapgettup_pagemode
                       heap_prepare_pagescan
                       page_collect_tuples

    11.91%     0.31%  postgres  [.] read_stream_look_ahead
            |          
             --11.60%--read_stream_look_ahead
                       |          
                        --11.33%--read_stream_start_pending_read
                                  |          
                                   --11.30%--StartReadBuffers
                                             StartReadBuffersImpl
                                             |          
                                              --11.17%--PinBufferForBlock
                                                        |          
                                                         --10.94%--BufferAlloc
                                                                   |          
                                                                   |--5.08%--GetVictimBuffer
                                                                   |          |          
                                                                   |           --3.45%--InvalidateVictimBuffer
                                                                   |                     |          
                                                                   |                     |--0.95%--BufTableDelete
                                                                   |                     |          |          
                                                                   |                     |           --0.91%--hash_search_with_hash_value
                                                                   |                     |          
                                                                   |                     |--0.93%--BufTableHashCode
                                                                   |                     |          |          
                                                                   |                     |           --0.90%--get_hash_value
                                                                   |                     |                     |          
                                                                   |                     |                      --0.84%--tag_hash
                                                                   |                     |                                |          
                                                                   |                     |                                 --0.81%--hash_bytes
                                                                   |                     |          
                                                                   |                      --0.56%--LWLockAcquire
                                                                   |          
                                                                   |--0.96%--LWLockAcquire
                                                                   |          |          
                                                                   |           --0.80%--LWLockAttemptLock
                                                                   |          
                                                                   |--0.95%--BufTableHashCode
                                                                   |          |          
                                                                   |           --0.93%--get_hash_value
                                                                   |                     |          
                                                                   |                      --0.89%--tag_hash
                                                                   |                                |          
                                                                   |                                 --0.83%--hash_bytes
                                                                   |          
                                                                   |--0.77%--BufTableLookup
                                                                   |          |          
                                                                   |           --0.71%--hash_search_with_hash_value
                                                                   |          
                                                                   |--0.74%--BufTableInsert
                                                                   |          |          
                                                                   |           --0.67%--hash_search_with_hash_value
                                                                   |          
                                                                   |--0.71%--LWLockRelease
                                                                   |          
                                                                    --0.71%--ReservePrivateRefCountEntry
                                                                              |          
                                                                               --0.55%--hash_search

    11.33%     0.02%  postgres  [.] read_stream_start_pending_read
            |          
             --11.30%--read_stream_start_pending_read
                       |          
                        --11.30%--StartReadBuffers
                                  StartReadBuffersImpl
                                  |          
                                   --11.17%--PinBufferForBlock
                                             |          
                                              --10.94%--BufferAlloc
                                                        |          
                                                        |--5.08%--GetVictimBuffer
                                                        |          |          
                                                        |           --3.45%--InvalidateVictimBuffer
                                                        |                     |          
                                                        |                     |--0.95%--BufTableDelete
                                                        |                     |          |          
                                                        |                     |           --0.91%--hash_search_with_hash_value
                                                        |                     |          
                                                        |                     |--0.93%--BufTableHashCode
                                                        |                     |          |          
                                                        |                     |           --0.90%--get_hash_value
                                                        |                     |                     |          
                                                        |                     |                      --0.84%--tag_hash
                                                        |                     |                                |          
                                                        |                     |                                 --0.81%--hash_bytes
                                                        |                     |          
                                                        |                      --0.56%--LWLockAcquire
                                                        |          
                                                        |--0.96%--LWLockAcquire
                                                        |          |          
                                                        |           --0.80%--LWLockAttemptLock
                                                        |          
                                                        |--0.95%--BufTableHashCode
                                                        |          |          
                                                        |           --0.93%--get_hash_value
                                                        |                     |          
                                                        |                      --0.89%--tag_hash
                                                        |                                |          
                                                        |                                 --0.83%--hash_bytes
                                                        |          
                                                        |--0.77%--BufTableLookup
                                                        |          |          
                                                        |           --0.71%--hash_search_with_hash_value
                                                        |          
                                                        |--0.74%--BufTableInsert
                                                        |          |          
                                                        |           --0.67%--hash_search_with_hash_value
                                                        |          
                                                        |--0.71%--LWLockRelease
                                                        |          
                                                         --0.71%--ReservePrivateRefCountEntry
                                                                   |          
                                                                    --0.55%--hash_search

    11.30%     0.12%  postgres  [.] StartReadBuffersImpl
            |          
             --11.18%--StartReadBuffersImpl
                       |          
                        --11.17%--PinBufferForBlock
                                  |          
                                   --10.95%--BufferAlloc
                                             |          
                                             |--5.08%--GetVictimBuffer
                                             |          |          
                                             |           --3.45%--InvalidateVictimBuffer
                                             |                     |          
                                             |                     |--0.95%--BufTableDelete
                                             |                     |          |          
                                             |                     |           --0.91%--hash_search_with_hash_value
                                             |                     |          
                                             |                     |--0.93%--BufTableHashCode
                                             |                     |          |          
                                             |                     |           --0.90%--get_hash_value
                                             |                     |                     |          
                                             |                     |                      --0.84%--tag_hash
                                             |                     |                                |          
                                             |                     |                                 --0.81%--hash_bytes
                                             |                     |          
                                             |                      --0.56%--LWLockAcquire
                                             |          
                                             |--0.96%--LWLockAcquire
                                             |          |          
                                             |           --0.80%--LWLockAttemptLock
                                             |          
                                             |--0.95%--BufTableHashCode
                                             |          |          
                                             |           --0.93%--get_hash_value
                                             |                     |          
                                             |                      --0.89%--tag_hash
                                             |                                |          
                                             |                                 --0.83%--hash_bytes
                                             |          
                                             |--0.77%--BufTableLookup
                                             |          |          
                                             |           --0.71%--hash_search_with_hash_value
                                             |          
                                             |--0.74%--BufTableInsert
                                             |          |          
                                             |           --0.67%--hash_search_with_hash_value
                                             |          
                                             |--0.71%--LWLockRelease
                                             |          
                                              --0.71%--ReservePrivateRefCountEntry
                                                        |          
                                                         --0.55%--hash_search

    11.30%     0.00%  postgres  [.] StartReadBuffers
            |
            ---StartReadBuffers
               StartReadBuffersImpl
               |          
                --11.17%--PinBufferForBlock
                          |          
                           --10.94%--BufferAlloc
                                     |          
                                     |--5.08%--GetVictimBuffer
                                     |          |          
                                     |           --3.45%--InvalidateVictimBuffer
                                     |                     |          
                                     |                     |--0.95%--BufTableDelete
                                     |                     |          |          
                                     |                     |           --0.91%--hash_search_with_hash_value
                                     |                     |          
                                     |                     |--0.93%--BufTableHashCode
                                     |                     |          |          
                                     |                     |           --0.90%--get_hash_value
                                     |                     |                     |          
                                     |                     |                      --0.84%--tag_hash
                                     |                     |                                |          
                                     |                     |                                 --0.81%--hash_bytes
                                     |                     |          
                                     |                      --0.56%--LWLockAcquire
                                     |          
                                     |--0.96%--LWLockAcquire
                                     |          |          
                                     |           --0.80%--LWLockAttemptLock
                                     |          
                                     |--0.95%--BufTableHashCode
                                     |          |          
                                     |           --0.93%--get_hash_value
                                     |                     |          
                                     |                      --0.89%--tag_hash
                                     |                                |          
                                     |                                 --0.83%--hash_bytes
                                     |          
                                     |--0.77%--BufTableLookup
                                     |          |          
                                     |           --0.71%--hash_search_with_hash_value
                                     |          
                                     |--0.74%--BufTableInsert
                                     |          |          
                                     |           --0.67%--hash_search_with_hash_value
                                     |          
                                     |--0.71%--LWLockRelease
                                     |          
                                      --0.71%--ReservePrivateRefCountEntry
                                                |          
                                                 --0.55%--hash_search

    11.18%     0.10%  postgres  [.] PinBufferForBlock
            |          
             --11.08%--PinBufferForBlock
                       |          
                        --10.95%--BufferAlloc
                                  |          
                                  |--5.08%--GetVictimBuffer
                                  |          |          
                                  |           --3.45%--InvalidateVictimBuffer
                                  |                     |          
                                  |                     |--0.95%--BufTableDelete
                                  |                     |          |          
                                  |                     |           --0.91%--hash_search_with_hash_value
                                  |                     |          
                                  |                     |--0.93%--BufTableHashCode
                                  |                     |          |          
                                  |                     |           --0.90%--get_hash_value
                                  |                     |                     |          
                                  |                     |                      --0.84%--tag_hash
                                  |                     |                                |          
                                  |                     |                                 --0.81%--hash_bytes
                                  |                     |          
                                  |                      --0.56%--LWLockAcquire
                                  |          
                                  |--0.96%--LWLockAcquire
                                  |          |          
                                  |           --0.80%--LWLockAttemptLock
                                  |          
                                  |--0.95%--BufTableHashCode
                                  |          |          
                                  |           --0.93%--get_hash_value
                                  |                     |          
                                  |                      --0.89%--tag_hash
                                  |                                |          
                                  |                                 --0.83%--hash_bytes
                                  |          
                                  |--0.77%--BufTableLookup
                                  |          |          
                                  |           --0.71%--hash_search_with_hash_value
                                  |          
                                  |--0.74%--BufTableInsert
                                  |          |          
                                  |           --0.67%--hash_search_with_hash_value
                                  |          
                                  |--0.71%--LWLockRelease
                                  |          
                                   --0.71%--ReservePrivateRefCountEntry
                                             |          
                                              --0.55%--hash_search

    10.96%     0.24%  postgres  [.] BufferAlloc
            |          
             --10.72%--BufferAlloc
                       |          
                       |--5.08%--GetVictimBuffer
                       |          |          
                       |           --3.45%--InvalidateVictimBuffer
                       |                     |          
                       |                     |--0.95%--BufTableDelete
                       |                     |          |          
                       |                     |           --0.91%--hash_search_with_hash_value
                       |                     |          
                       |                     |--0.93%--BufTableHashCode
                       |                     |          |          
                       |                     |           --0.90%--get_hash_value
                       |                     |                     |          
                       |                     |                      --0.84%--tag_hash
                       |                     |                                |          
                       |                     |                                 --0.81%--hash_bytes
                       |                     |          
                       |                      --0.56%--LWLockAcquire
                       |          
                       |--0.96%--LWLockAcquire
                       |          |          
                       |           --0.80%--LWLockAttemptLock
                       |          
                       |--0.95%--BufTableHashCode
                       |          |          
                       |           --0.93%--get_hash_value
                       |                     |          
                       |                      --0.89%--tag_hash
                       |                                |          
                       |                                 --0.83%--hash_bytes
                       |          
                       |--0.77%--BufTableLookup
                       |          |          
                       |           --0.71%--hash_search_with_hash_value
                       |          
                       |--0.74%--BufTableInsert
                       |          |          
                       |           --0.67%--hash_search_with_hash_value
                       |          
                       |--0.71%--LWLockRelease
                       |          
                        --0.71%--ReservePrivateRefCountEntry
                                  |          
                                   --0.55%--hash_search

    10.09%     2.42%  postgres  [.] ExecStoreBufferHeapTuple
            |          
            |--7.67%--ExecStoreBufferHeapTuple
            |          |          
            |           --7.65%--tts_buffer_heap_store_tuple
            |                     |          
            |                     |--2.47%--IncrBufferRefCount
            |                     |          |          
            |                     |           --2.11%--GetPrivateRefCountEntry
            |                     |                     |          
            |                     |                      --1.54%--hash_search
            |                     |                                |          
            |                     |                                |--0.87%--hash_search_with_hash_value
            |                     |                                |          
            |                     |                                 --0.57%--uint32_hash
            |                     |                                           |          
            |                     |                                            --0.54%--hash_bytes_uint32
            |                     |          
            |                      --2.04%--ReleaseBuffer
            |                                |          
            |                                 --1.95%--UnpinBuffer
            |                                           |          
            |                                           |--1.25%--UnpinBufferNoOwner
            |                                           |          
            |                                            --0.63%--ResourceOwnerForgetBuffer
            |                                                      |          
            |                                                       --0.56%--ResourceOwnerForget
            |          
             --2.04%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       table_scan_getnextslot
                       |          
                        --1.84%--heap_getnextslot
                                  ExecStoreBufferHeapTuple

     8.05%     3.48%  postgres  [.] tts_buffer_heap_store_tuple
            |          
            |--4.57%--tts_buffer_heap_store_tuple
            |          |          
            |          |--2.47%--IncrBufferRefCount
            |          |          |          
            |          |           --2.11%--GetPrivateRefCountEntry
            |          |                     |          
            |          |                      --1.54%--hash_search
            |          |                                |          
            |          |                                |--0.87%--hash_search_with_hash_value
            |          |                                |          
            |          |                                 --0.57%--uint32_hash
            |          |                                           |          
            |          |                                            --0.54%--hash_bytes_uint32
            |          |          
            |           --2.04%--ReleaseBuffer
            |                     |          
            |                      --1.95%--UnpinBuffer
            |                                |          
            |                                |--1.25%--UnpinBufferNoOwner
            |                                |          
            |                                 --0.63%--ResourceOwnerForgetBuffer
            |                                           |          
            |                                            --0.56%--ResourceOwnerForget
            |          
             --3.23%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       table_scan_getnextslot
                       heap_getnextslot
                       |          
                        --3.08%--ExecStoreBufferHeapTuple
                                  tts_buffer_heap_store_tuple

     5.08%     0.16%  postgres  [.] GetVictimBuffer
            |          
             --4.92%--GetVictimBuffer
                       |          
                        --3.45%--InvalidateVictimBuffer
                                  |          
                                  |--0.95%--BufTableDelete
                                  |          |          
                                  |           --0.91%--hash_search_with_hash_value
                                  |          
                                  |--0.93%--BufTableHashCode
                                  |          |          
                                  |           --0.90%--get_hash_value
                                  |                     |          
                                  |                      --0.84%--tag_hash
                                  |                                |          
                                  |                                 --0.81%--hash_bytes
                                  |          
                                   --0.56%--LWLockAcquire

     4.79%     3.14%  postgres  [.] ItemPointerSet
            |          
            |--2.81%--_start
            |          __libc_start_main_impl (inlined)
            |          __libc_start_call_main
            |          main
            |          PostmasterMain
            |          ServerLoop
            |          BackendStartup
            |          postmaster_child_launch
            |          BackendMain
            |          PostgresMain
            |          exec_simple_query
            |          PortalRun
            |          PortalRunMulti
            |          PortalRunUtility
            |          ProcessUtility
            |          standard_ProcessUtility
            |          ExecVacuum
            |          vacuum
            |          vac_update_datfrozenxid
            |          systable_getnext
            |          table_scan_getnextslot
            |          heap_getnextslot
            |          heapgettup_pagemode
            |          |          
            |          |--1.71%--ItemPointerSet
            |          |          
            |           --1.10%--heap_prepare_pagescan
            |                     page_collect_tuples
            |                     ItemPointerSet
            |          
             --1.64%--ItemPointerSet
                       |          
                        --1.62%--BlockIdSet

     4.03%     4.02%  postgres  [.] TransactionIdPrecedes
            |          
             --3.28%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       |          
                       |--2.19%--TransactionIdPrecedes
                       |          
                        --1.09%--systable_getnext
                                  table_scan_getnextslot
                                  heap_getnextslot
                                  heapgettup_pagemode
                                  heap_prepare_pagescan
                                  page_collect_tuples
                                  HeapTupleSatisfiesVisibility
                                  HeapTupleSatisfiesMVCC
                                  XidInMVCCSnapshot
                                  TransactionIdPrecedes

     3.69%     1.97%  postgres  [.] hash_search_with_hash_value
            |          
            |--1.94%--_start
            |          __libc_start_main_impl (inlined)
            |          __libc_start_call_main
            |          main
            |          PostmasterMain
            |          ServerLoop
            |          BackendStartup
            |          postmaster_child_launch
            |          BackendMain
            |          PostgresMain
            |          exec_simple_query
            |          PortalRun
            |          PortalRunMulti
            |          PortalRunUtility
            |          ProcessUtility
            |          standard_ProcessUtility
            |          ExecVacuum
            |          vacuum
            |          vac_update_datfrozenxid
            |          systable_getnext
            |          table_scan_getnextslot
            |          heap_getnextslot
            |          |          
            |           --1.45%--heapgettup_pagemode
            |                     heap_fetch_next_buffer
            |                     read_stream_next_buffer
            |                     read_stream_look_ahead
            |                     read_stream_start_pending_read
            |                     StartReadBuffers
            |                     StartReadBuffersImpl
            |                     PinBufferForBlock
            |                     BufferAlloc
            |                     |          
            |                     |--0.53%--BufTableLookup
            |                     |          hash_search_with_hash_value
            |                     |          
            |                      --0.52%--GetVictimBuffer
            |                                InvalidateVictimBuffer
            |                                BufTableDelete
            |                                hash_search_with_hash_value
            |          
             --1.72%--hash_search_with_hash_value
                       |          
                        --1.02%--hash_initial_lookup

     3.46%     0.12%  postgres  [.] InvalidateVictimBuffer
            |          
             --3.34%--InvalidateVictimBuffer
                       |          
                       |--0.95%--BufTableDelete
                       |          |          
                       |           --0.91%--hash_search_with_hash_value
                       |          
                       |--0.93%--BufTableHashCode
                       |          |          
                       |           --0.90%--get_hash_value
                       |                     |          
                       |                      --0.84%--tag_hash
                       |                                |          
                       |                                 --0.81%--hash_bytes
                       |          
                        --0.56%--LWLockAcquire

     3.12%     1.39%  postgres  [.] GetPrivateRefCountEntry
            |          
            |--1.73%--GetPrivateRefCountEntry
            |          |          
            |           --1.58%--hash_search
            |                     |          
            |                     |--0.89%--hash_search_with_hash_value
            |                     |          
            |                      --0.59%--uint32_hash
            |                                |          
            |                                 --0.56%--hash_bytes_uint32
            |          
             --1.38%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       table_scan_getnextslot
                       heap_getnextslot
                       |          
                       |--0.77%--ExecStoreBufferHeapTuple
                       |          tts_buffer_heap_store_tuple
                       |          
                        --0.61%--heapgettup_pagemode
                                  heap_fetch_next_buffer

     2.95%     0.18%  postgres  [.] ReleaseBuffer
            |          
             --2.76%--ReleaseBuffer
                       |          
                        --2.75%--UnpinBuffer
                                  |          
                                  |--1.83%--UnpinBufferNoOwner
                                  |          |          
                                  |           --0.74%--GetPrivateRefCountEntry
                                  |          
                                   --0.82%--ResourceOwnerForgetBuffer
                                             |          
                                              --0.72%--ResourceOwnerForget

     2.79%     0.11%  postgres  [.] UnpinBuffer
            |          
             --2.67%--UnpinBuffer
                       |          
                       |--1.83%--UnpinBufferNoOwner
                       |          |          
                       |           --0.74%--GetPrivateRefCountEntry
                       |          
                        --0.82%--ResourceOwnerForgetBuffer
                                  |          
                                   --0.72%--ResourceOwnerForget

     2.74%     1.64%  postgres  [.] XidInMVCCSnapshot
            |          
            |--1.31%--_start
            |          __libc_start_main_impl (inlined)
            |          __libc_start_call_main
            |          main
            |          PostmasterMain
            |          ServerLoop
            |          BackendStartup
            |          postmaster_child_launch
            |          BackendMain
            |          PostgresMain
            |          exec_simple_query
            |          PortalRun
            |          PortalRunMulti
            |          PortalRunUtility
            |          ProcessUtility
            |          standard_ProcessUtility
            |          ExecVacuum
            |          vacuum
            |          vac_update_datfrozenxid
            |          systable_getnext
            |          table_scan_getnextslot
            |          heap_getnextslot
            |          heapgettup_pagemode
            |          heap_prepare_pagescan
            |          page_collect_tuples
            |          HeapTupleSatisfiesVisibility
            |          HeapTupleSatisfiesMVCC
            |          XidInMVCCSnapshot
            |          
             --1.10%--XidInMVCCSnapshot
                       TransactionIdPrecedes

     2.48%     0.07%  postgres  [.] IncrBufferRefCount
            |          
             --2.41%--IncrBufferRefCount
                       |          
                        --2.11%--GetPrivateRefCountEntry
                                  |          
                                   --1.54%--hash_search
                                             |          
                                             |--0.87%--hash_search_with_hash_value
                                             |          
                                              --0.57%--uint32_hash
                                                        |          
                                                         --0.54%--hash_bytes_uint32

     2.31%     0.12%  postgres  [.] hash_search
            |          
             --2.18%--hash_search
                       |          
                       |--1.37%--hash_search_with_hash_value
                       |          
                        --0.79%--uint32_hash
                                  |          
                                   --0.76%--hash_bytes_uint32

     2.21%     1.37%  postgres  [.] ExecFetchSlotHeapTuple
            |          
            |--0.99%--_start
            |          __libc_start_main_impl (inlined)
            |          __libc_start_call_main
            |          main
            |          PostmasterMain
            |          ServerLoop
            |          BackendStartup
            |          postmaster_child_launch
            |          BackendMain
            |          PostgresMain
            |          exec_simple_query
            |          PortalRun
            |          PortalRunMulti
            |          PortalRunUtility
            |          ProcessUtility
            |          standard_ProcessUtility
            |          ExecVacuum
            |          vacuum
            |          vac_update_datfrozenxid
            |          systable_getnext
            |          ExecFetchSlotHeapTuple
            |          
             --0.84%--ExecFetchSlotHeapTuple
                       |          
                        --0.83%--tts_buffer_heap_get_heap_tuple

     2.19%     2.13%  postgres  [.] PageGetItemId
            |          
             --1.58%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       table_scan_getnextslot
                       heap_getnextslot
                       heapgettup_pagemode
                       |          
                       |--0.81%--PageGetItemId
                       |          
                        --0.77%--heap_prepare_pagescan
                                  page_collect_tuples
                                  PageGetItemId

     2.11%     0.37%  postgres  [.] LWLockAcquire
            |          
             --1.74%--LWLockAcquire
                       |          
                        --1.73%--LWLockAttemptLock
                                  |          
                                   --0.89%--pg_atomic_compare_exchange_u32
                                             |          
                                              --0.76%--pg_atomic_compare_exchange_u32_impl

     1.90%     1.89%  postgres  [.] BlockIdSet
            |          
             --1.60%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       table_scan_getnextslot
                       heap_getnextslot
                       heapgettup_pagemode
                       |          
                       |--0.81%--heap_prepare_pagescan
                       |          page_collect_tuples
                       |          ItemPointerSet
                       |          BlockIdSet
                       |          
                        --0.79%--ItemPointerSet
                                  BlockIdSet

     1.89%     0.06%  postgres  [.] BufTableHashCode
            |          
             --1.83%--BufTableHashCode
                       get_hash_value
                       |          
                        --1.73%--tag_hash
                                  |          
                                   --1.65%--hash_bytes

     1.87%     0.34%  postgres  [.] LockBufHdr
            |          
             --1.53%--LockBufHdr
                       |          
                        --1.16%--pg_atomic_fetch_or_u32
                                  |          
                                   --1.00%--pg_atomic_fetch_or_u32_impl

     1.85%     0.52%  postgres  [.] UnpinBufferNoOwner
            |          
             --1.33%--UnpinBufferNoOwner
                       |          
                        --0.74%--GetPrivateRefCountEntry

     1.84%     0.10%  postgres  [.] get_hash_value
            |          
             --1.74%--get_hash_value
                       |          
                        --1.73%--tag_hash
                                  |          
                                   --1.65%--hash_bytes

     1.78%     0.52%  postgres  [.] LWLockAttemptLock
            |          
             --1.26%--LWLockAttemptLock
                       |          
                        --0.89%--pg_atomic_compare_exchange_u32
                                  |          
                                   --0.76%--pg_atomic_compare_exchange_u32_impl

     1.75%     0.11%  postgres  [.] tag_hash
            |          
             --1.65%--tag_hash
                       hash_bytes

     1.69%     1.67%  postgres  [.] MultiXactIdPrecedes
            |          
            |--1.15%--_start
            |          __libc_start_main_impl (inlined)
            |          __libc_start_call_main
            |          main
            |          PostmasterMain
            |          ServerLoop
            |          BackendStartup
            |          postmaster_child_launch
            |          BackendMain
            |          PostgresMain
            |          exec_simple_query
            |          PortalRun
            |          PortalRunMulti
            |          PortalRunUtility
            |          ProcessUtility
            |          standard_ProcessUtility
            |          ExecVacuum
            |          vacuum
            |          vac_update_datfrozenxid
            |          MultiXactIdPrecedes
            |          
             --0.52%--0xa00000012
                       LocalExecuteInvalidationMessage
                       MultiXactIdPrecedes

     1.67%     1.38%  postgres  [.] hash_bytes
            |          
             --1.37%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       table_scan_getnextslot
                       heap_getnextslot
                       heapgettup_pagemode
                       heap_fetch_next_buffer
                       read_stream_next_buffer
                       read_stream_look_ahead
                       read_stream_start_pending_read
                       StartReadBuffers
                       StartReadBuffersImpl
                       PinBufferForBlock
                       BufferAlloc
                       |          
                       |--0.70%--GetVictimBuffer
                       |          InvalidateVictimBuffer
                       |          BufTableHashCode
                       |          get_hash_value
                       |          |          
                       |           --0.69%--tag_hash
                       |                     hash_bytes
                       |          
                        --0.67%--BufTableHashCode
                                  get_hash_value
                                  tag_hash
                                  hash_bytes

     1.59%     0.18%  postgres  [.] TerminateBufferIO
            |          
             --1.41%--TerminateBufferIO

     1.50%     0.63%  postgres  [.] LWLockRelease
            |          
            |--0.87%--LWLockRelease
            |          pg_atomic_sub_fetch_u32
            |          |          
            |           --0.73%--pg_atomic_sub_fetch_u32_impl
            |                     |          
            |                      --0.58%--pg_atomic_fetch_sub_u32_impl
            |          
             --0.62%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       table_scan_getnextslot
                       heap_getnextslot
                       heapgettup_pagemode

     1.35%     1.29%  postgres  [.] PageGetItem
            |          
             --0.90%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       table_scan_getnextslot
                       heap_getnextslot
                       heapgettup_pagemode
                       |          
                        --0.59%--PageGetItem

     1.32%     0.06%  postgres  [.] WaitReadBuffersCanStartIO
            |          
             --1.26%--WaitReadBuffersCanStartIO
                       |          
                        --1.24%--StartBufferIO
                                  |          
                                   --0.55%--ResourceOwnerEnlarge

     1.28%     0.27%  postgres  [.] pg_atomic_fetch_or_u32
            |          
             --1.01%--pg_atomic_fetch_or_u32
                       |          
                        --1.00%--pg_atomic_fetch_or_u32_impl

     1.24%     0.09%  postgres  [.] StartBufferIO
            |          
             --1.15%--StartBufferIO
                       |          
                        --0.55%--ResourceOwnerEnlarge

     1.23%     1.23%  postgres  [.] tts_buffer_heap_get_heap_tuple
            |          
             --1.14%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       |          
                        --0.83%--ExecFetchSlotHeapTuple
                                  tts_buffer_heap_get_heap_tuple

     1.20%     0.00%  postgres  [.] 0x0000651af1babc37
            |
            ---0x651af1babc37

     1.16%     0.99%  postgres  [.] ResourceOwnerForget
            |          
             --0.97%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       table_scan_getnextslot
                       heap_getnextslot

     1.15%     0.15%  postgres  [.] LockBuffer
            |          
             --1.00%--LockBuffer
                       |          
                        --0.55%--LWLockAcquire

     1.12%     0.00%  postgres  [.] 0x0000000a00000012
            |
            ---0xa00000012
               LocalExecuteInvalidationMessage
               |          
                --0.52%--MultiXactIdPrecedes

     1.12%     0.00%  postgres  [.] LocalExecuteInvalidationMessage
            |
            ---LocalExecuteInvalidationMessage
               |          
                --0.52%--MultiXactIdPrecedes

     1.10%     0.83%  postgres  [.] hash_initial_lookup
            |          
             --0.78%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       table_scan_getnextslot
                       heap_getnextslot
                       |          
                        --0.50%--heapgettup_pagemode
                                  heap_fetch_next_buffer
                                  read_stream_next_buffer
                                  read_stream_look_ahead
                                  read_stream_start_pending_read
                                  StartReadBuffers
                                  StartReadBuffersImpl
                                  PinBufferForBlock
                                  BufferAlloc

     1.04%     1.04%  postgres  [.] pg_atomic_fetch_or_u32_impl
            |          
             --1.00%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       table_scan_getnextslot
                       heap_getnextslot
                       heapgettup_pagemode
                       heap_fetch_next_buffer
                       read_stream_next_buffer
                       |          
                        --0.59%--read_stream_look_ahead
                                  read_stream_start_pending_read
                                  StartReadBuffers
                                  StartReadBuffersImpl
                                  PinBufferForBlock
                                  BufferAlloc

     0.96%     0.06%  postgres  [.] BufTableDelete
            |          
             --0.91%--BufTableDelete
                       hash_search_with_hash_value

     0.92%     0.17%  postgres  [.] pg_atomic_compare_exchange_u32
            |          
             --0.76%--pg_atomic_compare_exchange_u32
                       pg_atomic_compare_exchange_u32_impl

     0.91%     0.27%  postgres  [.] ReservePrivateRefCountEntry
            |          
             --0.65%--ReservePrivateRefCountEntry
                       hash_search

     0.88%     0.15%  postgres  [.] pg_atomic_sub_fetch_u32
            |          
             --0.73%--pg_atomic_sub_fetch_u32
                       pg_atomic_sub_fetch_u32_impl
                       |          
                        --0.58%--pg_atomic_fetch_sub_u32_impl

     0.84%     0.83%  postgres  [.] pg_rotate_left32
            |          
             --0.52%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       table_scan_getnextslot
                       heap_getnextslot

     0.84%     0.10%  postgres  [.] ResourceOwnerForgetBuffer
            |          
             --0.74%--ResourceOwnerForgetBuffer
                       |          
                        --0.72%--ResourceOwnerForget

     0.79%     0.79%  postgres  [.] pg_atomic_compare_exchange_u32_impl
            |          
             --0.76%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       table_scan_getnextslot
                       heap_getnextslot
                       heapgettup_pagemode
                       |          
                        --0.57%--heap_fetch_next_buffer
                                  read_stream_next_buffer
                                  read_stream_look_ahead
                                  read_stream_start_pending_read
                                  StartReadBuffers
                                  StartReadBuffersImpl
                                  PinBufferForBlock
                                  BufferAlloc

     0.79%     0.03%  postgres  [.] uint32_hash
            |          
             --0.76%--uint32_hash
                       hash_bytes_uint32

     0.79%     0.00%  postgres  [.] 0x00007ffe6151051f
            |
            ---0x7ffe6151051f

     0.77%     0.06%  postgres  [.] BufTableLookup
            |          
             --0.72%--BufTableLookup
                       |          
                        --0.71%--hash_search_with_hash_value

     0.77%     0.50%  postgres  [.] hash_bytes_uint32
     0.75%     0.17%  postgres  [.] pg_atomic_sub_fetch_u32_impl
            |          
             --0.59%--pg_atomic_sub_fetch_u32_impl
                       |          
                        --0.58%--pg_atomic_fetch_sub_u32_impl

     0.75%     0.06%  postgres  [.] BufTableInsert
            |          
             --0.69%--BufTableInsert
                       |          
                        --0.67%--hash_search_with_hash_value

     0.74%     0.00%  postgres  [.] 0xffffffffffffffff
            |
            ---0xffffffffffffffff

     0.73%     0.27%  postgres  [.] ResourceOwnerEnlarge
     0.71%     0.00%  postgres  [.] 0x200000001fffffff
            |
            ---0x200000001fffffff

     0.62%     0.61%  postgres  [.] pg_atomic_fetch_sub_u32_impl
            |          
             --0.56%--_start
                       __libc_start_main_impl (inlined)
                       __libc_start_call_main
                       main
                       PostmasterMain
                       ServerLoop
                       BackendStartup
                       postmaster_child_launch
                       BackendMain
                       PostgresMain
                       exec_simple_query
                       PortalRun
                       PortalRunMulti
                       PortalRunUtility
                       ProcessUtility
                       standard_ProcessUtility
                       ExecVacuum
                       vacuum
                       vac_update_datfrozenxid
                       systable_getnext
                       table_scan_getnextslot
                       heap_getnextslot
                       heapgettup_pagemode

     0.52%     0.51%  postgres  [.] HandleConcurrentAbort
     0.52%     0.13%  postgres  [.] hash_resource_elem
     0.49%     0.05%  postgres  [.] ResourceOwnerForgetBufferIO
     0.48%     0.00%  postgres  [.] 0x00007ffe615104ef
     0.46%     0.04%  postgres  [.] StrategyGetBuffer
     0.44%     0.12%  postgres  [.] PinBuffer_Locked
     0.44%     0.15%  postgres  [.] ResourceOwnerAddToHash
     0.42%     0.41%  postgres  [.] ResourceOwnerRemember
     0.42%     0.15%  postgres  [.] GetBufferFromRing
     0.39%     0.14%  postgres  [.] pg_atomic_read_u32
     0.36%     0.09%  postgres  [.] ResourceOwnerRememberBuffer
     0.36%     0.06%  postgres  [.] pg_atomic_compare_exchange_u32
     0.35%     0.17%  postgres  [.] UnlockBufHdr
     0.33%     0.00%  postgres  [.] 0x0000651af1babb57
     0.32%     0.00%  postgres  [.] 0x00007ffe6151033f
     0.32%     0.07%  postgres  [.] ConditionVariableBroadcast
     0.32%     0.32%  postgres  [.] calc_bucket
     0.32%     0.31%  postgres  [.] murmurhash64
     0.31%     0.31%  postgres  [.] pg_atomic_compare_exchange_u32_impl
     0.31%     0.03%  postgres  [.] CheckBufferIsPinnedOnce
     0.29%     0.03%  postgres  [.] GetPrivateRefCount
     0.29%     0.21%  postgres  [.] get_hash_entry
     0.29%     0.16%  postgres  [.] heap_page_prune_opt
     0.28%     0.27%  postgres  [.] BufferDescriptorGetBuffer
     0.27%     0.27%  postgres  [.] pg_atomic_read_u32_impl
     0.27%     0.27%  postgres  [.] init_spin_delay
     0.25%     0.00%  postgres  [.] 0x20000001f1b6b64f
     0.25%     0.25%  postgres  [.] tas
     0.24%     0.24%  postgres  [.] tas
     0.24%     0.19%  postgres  [.] pg_atomic_write_u32
     0.21%     0.21%  postgres  [.] GetBufferDescriptor
     0.21%     0.06%  postgres  [.] read_stream_get_block
     0.19%     0.15%  postgres  [.] InitBufferTag
     0.18%     0.00%  postgres  [.] 0x00007ffe615101df
     0.18%     0.08%  postgres  [.] BufferGetBlockNumber
     0.17%     0.07%  postgres  [.] pgstat_count_io_op
     0.16%     0.16%  postgres  [.] finish_spin_delay
     0.15%     0.07%  postgres  [.] heap_scan_stream_read_next_serial
     0.15%     0.08%  postgres  [.] PageIsVerifiedExtended
     0.15%     0.00%  postgres  [.] 0x0000000000000013
     0.14%     0.07%  postgres  [.] ForgetPrivateRefCountEntry
     0.13%     0.03%  postgres  [.] ResourceOwnerRememberBufferIO
     0.12%     0.11%  postgres  [.] BufMappingPartitionLock
     0.12%     0.10%  postgres  [.] pg_atomic_read_u32
     0.12%     0.12%  postgres  [.] hash_combine64
     0.12%     0.12%  postgres  [.] Int32GetDatum
     0.12%     0.11%  postgres  [.] pgstat_count_io_op_n
     0.11%     0.11%  postgres  [.] pg_atomic_write_u32_impl
     0.11%     0.11%  postgres  [.] BufTagSetRelForkDetails
     0.10%     0.00%  postgres  [.] 0x00000014615100df
     0.09%     0.09%  postgres  [.] IOContextForStrategy
     0.09%     0.06%  postgres  [.] BufferGetPage
     0.08%     0.08%  postgres  [.] get_per_buffer_data
     0.08%     0.07%  postgres  [.] buffers_to_iovec
     0.08%     0.08%  postgres  [.] BufferGetBlock
     0.07%     0.07%  postgres  [.] heapgettup_advance_block
     0.07%     0.07%  postgres  [.] PageIsNew
     0.07%     0.00%  postgres  [.] 0x00007ffe6151040f
     0.06%     0.00%  postgres  [.] 0x20000000002e019f
     0.06%     0.02%  postgres  [.] ClearBufferTag
     0.06%     0.06%  postgres  [.] RecoveryInProgress
     0.05%     0.05%  postgres  [.] BufferDescriptorGetIOCV
     0.05%     0.05%  postgres  [.] SerializationNeededForRead
     0.05%     0.05%  postgres  [.] NewPrivateRefCountEntry
     0.05%     0.05%  postgres  [.] pg_atomic_read_u32_impl
     0.05%     0.05%  postgres  [.] DataChecksumsEnabled
     0.05%     0.00%  postgres  [.] SlotInvalidationCauses+0x1f
     0.05%     0.02%  postgres  [.] CheckForSerializableConflictOutNeeded
     0.04%     0.00%  postgres  [.] 0x00007ffe6151046f
     0.04%     0.00%  postgres  [.] 0x00007f00615103cf
     0.04%     0.00%  postgres  [.] 0x200000016151037f
     0.04%     0.04%  postgres  [.] PageIsAllVisible
     0.04%     0.04%  postgres  [.] BufferIsValid
     0.04%     0.00%  postgres  [.] 0x00400000f1193cc8
     0.03%     0.03%  postgres  [.] PageGetMaxOffsetNumber
     0.03%     0.00%  postgres  [.] AllocSetFreeIndex
     0.03%     0.03%  postgres  [.] BufferIsValid
     0.03%     0.00%  postgres  [.] 0x00007ffe615103b2
     0.03%     0.03%  postgres  [.] proclist_is_empty
     0.03%     0.00%  postgres  [.] 0x86040000ffffffff
     0.02%     0.00%  postgres  [.] 0x00000001f08baafc
     0.02%     0.02%  postgres  [.] GetBufferDescriptor
     0.02%     0.02%  postgres  [.] BufTableHashPartition
     0.02%     0.00%  postgres  [.] 0x000001036151038f
     0.02%     0.00%  postgres  [.] 0x0000010bf1babc3b
     0.02%     0.00%  postgres  [.] 0x0000001e0000000e
     0.02%     0.00%  postgres  [.] 0x0000002cffffffff
     0.02%     0.00%  postgres  [.] 0x000000fa6151038f
     0.02%     0.00%  postgres  [.] 0x000000146151022f
     0.02%     0.00%  postgres  [.] 0x82440001f11940c7
     0.02%     0.00%  postgres  [.] 0x00007ffe615103ff
     0.02%     0.00%  postgres  [.] 0x00007ffe6151015f
     0.02%     0.00%  postgres  [.] 0x0000000e0000001e
     0.02%     0.02%  postgres  [.] FileAccess
     0.02%     0.00%  postgres  [.] 0x0100000161510100
     0.02%     0.00%  postgres  [.] 0x00007ffe6151022f
     0.02%     0.00%  postgres  [.] 0x00000109f11940c7
     0.02%     0.00%  postgres  [.] 0x0000000c00000020
     0.02%     0.00%  postgres  [.] 0x0000000b00000021
     0.02%     0.00%  postgres  [.] 0x0000010900000000
     0.02%     0.02%  postgres  [.] pgstat_report_wait_end
     0.02%     0.00%  postgres  [.] 0x00007ffe615101af
     0.02%     0.00%  postgres  [.] 0x00000014f1b6c537
     0.02%     0.00%  postgres  [.] 0x00007ffe6151016f
     0.02%     0.00%  postgres  [.] 0x000000110000001b
     0.02%     0.00%  postgres  [.] 0x000000010000002b
     0.02%     0.00%  postgres  [.] 0x00007ffe6151013f
     0.02%     0.00%  postgres  [.] 0x00000114f0d7624e
     0.02%     0.00%  postgres  [.] 0x00007ffe61510192
     0.02%     0.00%  postgres  [.] 0x000001046151038f
     0.02%     0.00%  postgres  [.] 0x210000006151009f
     0.02%     0.00%  postgres  [.] 0x20000001e697dfff
     0.02%     0.01%  postgres  [.] pgstat_count_io_op_time
     0.02%     0.00%  postgres  [.] 0x010000006151013f
     0.02%     0.00%  postgres  [.] 0x00000102f1babc3b
     0.02%     0.00%  postgres  [.] 0x20000001e699dfff
     0.02%     0.00%  postgres  [.] 0x00000001615101af
     0.02%     0.00%  postgres  [.] 0x00007ffe6151019e
     0.02%     0.00%  postgres  [.] 0x000000f9f1babc3b
     0.01%     0.00%  postgres  [.] 0x27b053e96151013f
     0.01%     0.00%  postgres  [.] 0x0000000600000026
     0.01%     0.00%  postgres  [.] 0x00007630e669157f
     0.01%     0.00%  postgres  [.] 0x00000001f1b6c407
     0.01%     0.00%  postgres  [.] 0x0005c450e6980007
     0.01%     0.00%  postgres  [.] 0x0002f14f00000002
     0.01%     0.00%  postgres  [.] 0x0004ebf0e6980001
     0.01%     0.00%  postgres  [.] 0x00000001f1b6c287
     0.01%     0.00%  postgres  [.] 0x000598dfe6990001
     0.01%     0.00%  postgres  [.] 0x00007630e611c003
     0.01%     0.00%  postgres  [.] 0x79f63c24f1bbfecf
     0.01%     0.00%  postgres  [.] 0x00000014f1b6c3ff
     0.01%     0.00%  postgres  [.] 0x83440001f0d7624e
     0.01%     0.00%  postgres  [.] 0x0003c432e698002a
     0.01%     0.00%  postgres  [.] 0x83040001000000fb
     0.01%     0.00%  postgres  [.] 0x00000000000649b8
     0.01%     0.00%  postgres  [.] 0x0002c701e69a0027
     0.01%     0.00%  postgres  [.] 0x0000000000000113
     0.01%     0.00%  postgres  [.] 0x82040000ffffffff
     0.01%     0.00%  postgres  [.] 0x000000006151010f
     0.01%     0.00%  postgres  [.] 0x00000014f1b6c287
     0.01%     0.00%  postgres  [.] 0x0000001600000013
     0.01%     0.00%  postgres  [.] 0x830400006151036f
     0.01%     0.00%  postgres  [.] 0x00053d1900000002
     0.01%     0.00%  postgres  [.] buffer_io_resowner_desc+0x1f
     0.01%     0.00%  postgres  [.] 0x0004715be6990001
     0.01%     0.00%  postgres  [.] 0x00000001e6691657
     0.01%     0.00%  postgres  [.] 0x0100000000000013
     0.01%     0.00%  postgres  [.] 0xf4eb2cec6151010f
     0.01%     0.00%  postgres  [.] 0x0000010e83440000
     0.01%     0.00%  postgres  [.] 0x0004c1a3e69a0001
     0.01%     0.00%  postgres  [.] 0x00036bc6e69a0013
     0.01%     0.00%  postgres  [.] 0x000000f800000000
     0.01%     0.00%  postgres  [.] 0x000001056151016f
     0.01%     0.00%  postgres  [.] 0x00000109f1babc3b
     0.01%     0.01%  postgres  [.] pgstat_report_wait_start
     0.01%     0.00%  postgres  [.] 0x0a0000116151029f
     0.01%     0.00%  postgres  [.] 0x0000010df1babc3b
     0.01%     0.00%  postgres  [.] 0x0000001a00000012
     0.01%     0.01%  postgres  [.] BufferIsValid
     0.01%     0.00%  postgres  [.] 0x00000107f0d7624e
     0.01%     0.00%  postgres  [.] 0x000000faf0d7624e
     0.01%     0.00%  postgres  [.] 0x01000000ee826e9f
     0.01%     0.00%  postgres  [.] 0x00000014f1b6c4d7
     0.01%     0.00%  postgres  [.] 0x000001116151016f
     0.01%     0.00%  postgres  [.] 0x0000002500000007
     0.01%     0.00%  postgres  [.] 0x0000001300000019
     0.01%     0.00%  postgres  [.] 0x0005d16a00000002
     0.01%     0.00%  postgres  [.] 0x0000000900000023
     0.01%     0.00%  postgres  [.] 0x00000000e66918bf
     0.01%     0.00%  postgres  [.] 0x00007ffe615103cf
     0.01%     0.00%  postgres  [.] 0x0000000400000028
     0.01%     0.00%  postgres  [.] 0x00037824e69a0026
     0.01%     0.00%  postgres  [.] 0xc9bc65fd615101af
     0.01%     0.00%  postgres  [.] 0x0000001b00000011
     0.01%     0.00%  postgres  [.] 0x0005fe7be699000d
     0.01%     0.00%  postgres  [.] 0x00059ed1615103ff
     0.01%     0.00%  postgres  [.] 0x000000fcf1bac0ef
     0.01%     0.00%  postgres  [.] 0x00065566e69a0012
     0.01%     0.00%  postgres  [.] 0x0003a9fb00000002
     0.01%     0.00%  postgres  [.] 0x0006c22ae69b0013
     0.01%     0.00%  postgres  [.] 0x0000000800000024
     0.01%     0.00%  postgres  [.] 0x86440001f11940c7
     0.01%     0.00%  postgres  [.] 0x00007630e66918d7
     0.01%     0.00%  postgres  [.] 0x0000010fe69ac10f
     0.01%     0.00%  postgres  [.] 0x00035b3be6990010
     0.01%     0.00%  postgres  [.] 0x00007ffe61510187
     0.01%     0.00%  postgres  [.] 0x01000000615101af
     0.01%     0.00%  postgres  [.] 0x000610dae6990003
     0.01%     0.00%  postgres  [.] 0x0000010cf0d7624e
     0.01%     0.00%  postgres  [.] 0x00000110f0d7624e
     0.01%     0.00%  postgres  [.] 0x0000000000000003
     0.01%     0.00%  postgres  [.] 0x0005b5b900000002
     0.01%     0.00%  postgres  [.] 0x000000fc6151016f
     0.01%     0.00%  postgres  [.] 0x000000fcf1babc3b
     0.01%     0.00%  postgres  [.] 0xb03852016151010f
     0.01%     0.00%  postgres  [.] StartReadBuffer
     0.01%     0.00%  postgres  [.] 0x0006334de6970003
     0.01%     0.00%  postgres  [.] 0x00000001f1babb57
     0.01%     0.00%  postgres  [.] 0x00007630e6691397
     0.01%     0.00%  postgres  [.] 0x83040001000000fa
     0.01%     0.00%  postgres  [.] 0x0000002600000006
     0.01%     0.00%  postgres  [.] 0x0000010cf0b3f2cc
     0.01%     0.00%  postgres  [.] 0x00000111f1b6cdaf
     0.01%     0.00%  postgres  [.] 0x000000016151016f
     0.01%     0.00%  postgres  [.] 0x71f7df1f6151013f
     0.01%     0.00%  postgres  [.] 0x00007ffe615103bf
     0.01%     0.00%  postgres  [.] 0x000000000002e8d7
     0.01%     0.00%  postgres  [.] 0x00007630e66912d7
     0.01%     0.00%  postgres  [.] 0x00000105f0d7624e
     0.01%     0.00%  postgres  [.] 0x200000016151031f
     0.01%     0.00%  postgres  [.] 0x00000112ee8874bf
     0.01%     0.00%  postgres  [.] 0x00000000ffffffff
     0.01%     0.00%  postgres  [.] 0x000245a5e69a0012
     0.01%     0.00%  postgres  [.] 0x000000fe6151016f
     0.01%     0.01%  postgres  [.] BufferGetBlock
     0.01%     0.00%  postgres  [.] 0x0003f870e698001a
     0.01%     0.00%  postgres  [.] 0x0000000a00000022
     0.01%     0.00%  postgres  [.] 0x0000002400000008
     0.01%     0.00%  postgres  [.] 0x0000010ce69a610f
     0.01%     0.00%  postgres  [.] 0x00000014f1b6c387
     0.01%     0.00%  postgres  [.] 0x00007630e66911a7
     0.01%     0.00%  postgres  [.] 0x000000fbf0fc188a
     0.01%     0.00%  postgres  [.] 0x83440001f11940c7
     0.01%     0.00%  postgres  [.] 0x000000fff1babc3b
     0.01%     0.00%  postgres  [.] 0x000536b2e6980010
     0.01%     0.00%  postgres  [.] 0x000000fcf0d7624e
     0.01%     0.00%  postgres  [.] 0x000001016151040f
     0.01%     0.00%  postgres  [.] 0x0000010bf1bac0ef
     0.01%     0.00%  postgres  [.] 0x000000fb6151016f
     0.01%     0.00%  postgres  [.] 0x01000000ee8319ff
     0.01%     0.00%  postgres  [.] 0x0004e16be69b000f
     0.01%     0.00%  postgres  [.] 0x00007ffe615102fa
     0.01%     0.00%  postgres  [.] 0x0000010a00000000
     0.01%     0.00%  postgres  [.] 0x00000108f13974d7
     0.01%     0.00%  postgres  [.] 0x00007ffe615103af
     0.01%     0.00%  postgres  [.] 0x00000112ee8a59f7
     0.01%     0.00%  postgres  [.] 0x00030616e6980002
     0.01%     0.00%  postgres  [.] 0x0000000100000013
     0.01%     0.00%  postgres  [.] 0x00000001ee834047
     0.01%     0.00%  postgres  [.] 0x0002d9dbe6990009
     0.01%     0.00%  postgres  [.] 0x00000014f1b6c4cf
     0.01%     0.00%  postgres  [.] 0x00000100f11940c7
     0.01%     0.00%  postgres  [.] 0x000000f7f139749f
     0.01%     0.00%  postgres  [.] 0x00000113f1babc3b
     0.01%     0.00%  postgres  [.] 0x00000109f0d7624e
     0.01%     0.00%  postgres  [.] 0x8304000100000103
     0.01%     0.00%  postgres  [.] 0x0003838fe6970001
     0.01%     0.00%  postgres  [.] 0x00036879e699002b
     0.01%     0.00%  postgres  [.] 0x00000106f1babc3b
     0.01%     0.00%  postgres  [.] 0x000367fae6990007
     0.01%     0.00%  postgres  [.] 0x83040000ffffffff
     0.01%     0.00%  postgres  [.] 0x0000010c6151040f
     0.01%     0.00%  postgres  [.] 0x0000651af1bbfecf
     0.01%     0.00%  postgres  [.] 0x00000001ee83a0df
     0.01%     0.00%  postgres  [.] 0x0004d26c00000002
     0.01%     0.00%  postgres  [.] 0x0000000700000025
     0.01%     0.00%  postgres  [.] 0x0004a8a1e69a0000
     0.01%     0.00%  postgres  [.] 0x0004f655e6980000
     0.01%     0.00%  postgres  [.] 0x0003e182e69a000e
     0.01%     0.00%  postgres  [.] 0x000284e400000002
     0.01%     0.00%  postgres  [.] 0x0003fabbe6990004
     0.01%     0.00%  postgres  [.] 0x00069033e6980018
     0.01%     0.00%  postgres  [.] 0x200000016151013f
     0.01%     0.00%  postgres  [.] 0x0003455de6990022
     0.01%     0.00%  postgres  [.] 0x000582bae6990003
     0.01%     0.00%  postgres  [.] 0x00052cdce6990001
     0.01%     0.00%  postgres  [.] 0x00007630e611f183
     0.01%     0.00%  postgres  [.] 0x0000010cf1bac0ef
     0.01%     0.00%  postgres  [.] 0x00007630e611c703
     0.01%     0.00%  postgres  [.] 0x0002e5af00000002
     0.01%     0.00%  postgres  [.] 0x00043ba1e69a0017
     0.01%     0.00%  postgres  [.] 0x0002e3fce6990002
     0.01%     0.00%  postgres  [.] 0x0000001400000111
     0.01%     0.00%  postgres  [.] 0x00000111f1b6ce27
     0.01%     0.00%  postgres  [.] 0x00000112ee8dd6d7
     0.01%     0.00%  postgres  [.] 0x00000115f1babc3b
     0.01%     0.00%  postgres  [.] 0x0000000300000029
     0.01%     0.00%  postgres  [.] 0x00000001f1b6c29f
     0.01%     0.00%  postgres  [.] 0x00000000e669187f
     0.01%     0.00%  postgres  [.] 0x000485a3e69a002b
     0.01%     0.00%  postgres  [.] 0x000482d6615103ff
     0.01%     0.00%  postgres  [.] 0x00000115f11940c7


#
# (Cannot load tips.txt file, please install perf!)
#