Horton

Re: auto-sizing wal_buffers

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Josh Berkus <josh@agliodbs.com>
Cc: Greg Smith <greg@2ndquadrant.com>, Robert Haas <robertmhaas@gmail.com>, Magnus Hagander <magnus@hagander.net>, pgsql-hackers@postgresql.org
Date: 2011-01-16T17:32:30Z
Lists: pgsql-hackers 
Josh Berkus <josh@agliodbs.com> writes:
> I think we can be more specific on that last sentence; is there even any
> *theoretical* benefit to settings above 16MB, the size of a WAL segment?

IIRC there's a forced fsync at WAL segment switch, so no.

			regards, tom lane