Re: Uh, I change my mind about commit_delay + commit_siblings (sort of)
Peter Geoghegan <peter@2ndquadrant.com>
From: Peter Geoghegan <peter@2ndquadrant.com>
To: Simon Riggs <simon@2ndquadrant.com>
Cc: Robert Haas <robertmhaas@gmail.com>, PG Hackers <pgsql-hackers@postgresql.org>
Date: 2012-05-31T11:16:38Z
Lists: pgsql-hackers
On 31 May 2012 11:19, Simon Riggs <simon@2ndquadrant.com> wrote: > I've looked at this more closely now and I can see that the call to > XLogFlush() that is made from xact_redo_commit_internal() doesn't ever > actually flush WAL, so whether we delay or not is completely > irrelevant. > > So un-agreed. No change required to patch there. So, does that clear up the question of it being acceptable to add a delay to every existing XLogFlush() call site? I think so. Aside from the outstanding question of what to rename commit_delay/commit_siblings to, and how we might want to reframe those settings in the docs, I think that's everything. -- Peter Geoghegan http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training and Services