| From: | Alexander Korotkov <akorotkov(at)postgresql(dot)org> |
|---|---|
| To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
| Subject: | pgsql: Use an LWLock instead of a spinlock in waitlsn.c |
| Date: | 2024-04-06 21:50:10 |
| Message-ID: | E1rtDvN-000rUK-I9@gemulon.postgresql.org |
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| Thread: | |
| Lists: | pgsql-committers |
Use an LWLock instead of a spinlock in waitlsn.c
This should prevent busy-waiting when number of waiting processes is high.
Discussion: https://postgr.es/m/202404030658.hhj3vfxeyhft%40alvherre.pgsql
Author: Alvaro Herrera
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/25f42429e2ff2acca35c9154fc2e36b75c79227a
Modified Files
--------------
src/backend/commands/waitlsn.c | 15 +++++++--------
src/backend/utils/activity/wait_event_names.txt | 1 +
src/include/commands/waitlsn.h | 5 +----
src/include/storage/lwlocklist.h | 1 +
4 files changed, 10 insertions(+), 12 deletions(-)
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