Re: index prefetching
Tomasz Rybak <tomasz.rybak@post.pl>
Commits
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the thread's linked commits as JSON, with link sources.
API reference →
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aio: io_uring: Trigger async processing for large IOs
- a9ee66881744 19 (unreleased) landed
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read stream: Split decision about look ahead for AIO and combining
- 8ca147d582a5 19 (unreleased) landed
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read_stream: Only increase read-ahead distance when waiting for IO
- f63ca3379025 19 (unreleased) landed
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read_stream: Prevent distance from decaying too quickly
- 6e36930f9aaf 19 (unreleased) landed
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Reduce ExecSeqScan* code size using pg_assume()
- b227b0bb4e03 19 (unreleased) cited
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Fix rare bug in read_stream.c's split IO handling.
- b421223172a2 19 (unreleased) cited
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Fix multiranges to behave more like dependent types.
- 3e8235ba4f9c 17.0 cited
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Add EXPLAIN (MEMORY) to report planner memory consumption
- 5de890e3610d 17.0 cited
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Optimize nbtree backward scan boundary cases.
- c9c0589fda0e 17.0 cited
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Increment xactCompletionCount during subtransaction abort.
- 90c885cdab8b 14.0 cited
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Add nbtree Valgrind buffer lock checks.
- 4a70f829d86c 14.0 cited
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Add nbtree high key "continuescan" optimization.
- 29b64d1de7c7 12.0 cited
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Reduce pinning and buffer content locking for btree scans.
- 2ed5b87f96d4 9.5.0 cited
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Teach btree to handle ScalarArrayOpExpr quals natively.
- 9e8da0f75731 9.2.0 cited
On Thu, 2023-06-08 at 17:40 +0200, Tomas Vondra wrote: > Hi, > > At pgcon unconference I presented a PoC patch adding prefetching for > indexes, along with some benchmark results demonstrating the (pretty > significant) benefits etc. The feedback was quite positive, so let me > share the current patch more widely. > I added entry to https://wiki.postgresql.org/wiki/PgCon_2023_Developer_Unconference based on notes I took during that session. Hope it helps. -- Tomasz Rybak, Debian Developer <serpent@debian.org> GPG: A565 CE64 F866 A258 4DDC F9C7 ECB7 3E37 E887 AA8C