| From: | Thomas Munro <tmunro(at)postgresql(dot)org> |
|---|---|
| To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
| Subject: | pgsql: Use condition variables to wait for checkpoints. |
| Date: | 2019-03-13 22:02:43 |
| Message-ID: | E1h4BxT-0007ae-UP@gemulon.postgresql.org |
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| Lists: | pgsql-committers |
Use condition variables to wait for checkpoints.
Previously we used a polling/sleeping loop to wait for checkpoints
to begin and end, which leads to up to a couple hundred milliseconds
of needless thumb-twiddling. Use condition variables instead.
Author: Thomas Munro
Reviewed-by: Andres Freund
Discussion: https://postgr.es/m/CA%2BhUKGLY7sDe%2Bbg1K%3DbnEzOofGoo4bJHYh9%2BcDCXJepb6DQmLw%40mail.gmail.com
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/c6c9474aafa4de357ae424cd18b69e8bf7a4babe
Modified Files
--------------
doc/src/sgml/monitoring.sgml | 10 +++++++++-
src/backend/postmaster/checkpointer.c | 21 +++++++++++++++++----
src/backend/postmaster/pgstat.c | 6 ++++++
src/include/pgstat.h | 2 ++
4 files changed, 34 insertions(+), 5 deletions(-)
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