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Make walsender more responsive.

author Robert Haas <rhaas@postgresql.org>

Mon, 2 Jul 2012 13:36:34 +0000 (09:36 -0400)

committer Robert Haas <rhaas@postgresql.org>

Mon, 2 Jul 2012 13:41:01 +0000 (09:41 -0400)

commit f83b59997d29f06c3d67e7eb9a1f2c9cd017d665

tree 78a6cf4d43ca1c677cfeec05e187e17d17d8e884 tree

parent 9ad45c18b6c8d03ce18a26223eb0d15e900c7a2c commit | diff

Make walsender more responsive.

Per testing by Andres Freund, this improves replication performance
and reduces replication latency and latency jitter. I was a bit
concerned about moving more work into XLogInsert, but testing seems
to show that it's not a problem in practice.

Along the way, improve comments for WaitLatchOrSocket.

Andres Freund. Review and stylistic cleanup by me.

src/backend/access/transam/twophase.c diff | blob | blame | history

src/backend/access/transam/xact.c diff | blob | blame | history

src/backend/access/transam/xlog.c diff | blob | blame | history

src/backend/port/unix_latch.c diff | blob | blame | history

src/backend/port/win32_latch.c diff | blob | blame | history

src/backend/replication/walsender.c diff | blob | blame | history

src/include/replication/walsender.h diff | blob | blame | history

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