Re: 8.3 synchronous_commit

From: Florian Weimer <fweimer(at)bfk(dot)de>
To: Hannes Dorbath <light(at)theendofthetunnel(dot)de>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: 8.3 synchronous_commit
Date: 2008-01-22 08:32:25
Message-ID: 82d4rumfae.fsf@mid.bfk.de
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* Hannes Dorbath:

> I might completely misunderstand this feature. Shouldn't
> "synchronous_commit = off" improve performance?

Indeed.

We've seen something similar in one test, but couldn't reproduce it in
a clean environment so far.

> Maybe it's just my test box.. single SATA-II drive, XFS on top of LVM.

Ours was ext3, no LVM or RAID.

--
Florian Weimer <fweimer(at)bfk(dot)de>
BFK edv-consulting GmbH http://www.bfk.de/
Kriegsstraße 100 tel: +49-721-96201-1
D-76133 Karlsruhe fax: +49-721-96201-99

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