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Create a distinct wait event for POSIX DSM allocation.

Thomas Munro <tmunro@postgresql.org>

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Commit: 7bae3bbf62d63cdd49ae4ca4a851cef0cdbe6ab5
Author: Thomas Munro <tmunro@postgresql.org>
Date: 2022-07-14T11:56:28Z
Releases: 16.0 
Create a distinct wait event for POSIX DSM allocation.

Previously we displayed "DSMFillZeroWrite" while in posix_fallocate(),
because we shared the same wait event for "mmap" and "posix" DSM types.
Let's introduce a new wait event "DSMAllocate", to be more accurate.

Reported-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/20220711174518.yldckniicknsxgzl%40awork3.anarazel.de

Files

PathChange+/−
doc/src/sgml/monitoring.sgml modified +5 −0
src/backend/storage/ipc/dsm_impl.c modified +1 −1
src/backend/utils/activity/wait_event.c modified +3 −0
src/include/utils/wait_event.h modified +1 −0

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