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Use a WaitLatch for vacuum/autovacuum sleeping

author Stephen Frost <sfrost@snowman.net>

2021年3月30日 16:52:56 +0000 (12:52 -0400)

committer Stephen Frost <sfrost@snowman.net>

2021年3月30日 16:52:56 +0000 (12:52 -0400)

commit 4753ef37e0eda4ba0af614022d18fcbc5a946cc9

tree 6a0986976b4e9b85f1525734e87b95a91f268998 tree

parent 54bb91c30e3964fd81059e6b02e377cc9dd2d64c commit | diff

Use a WaitLatch for vacuum/autovacuum sleeping

Instead of using pg_usleep() in vacuum_delay_point(), use a WaitLatch.
This has the advantage that we will realize if the postmaster has been
killed since the last time we decided to sleep while vacuuming.

Reviewed-by: Thomas Munro
Discussion: https://postgr.es/m/CAFh8B=kcdk8k-Y21RfXPu5dX=bgPqJ8TC3p_qxR_ygdBS=JN5w@mail.gmail.com

src/backend/commands/vacuum.c diff | blob | blame | history

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