Re: Benchmark: Dell/Perc 6, 8 disk RAID 10

From: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
To: Greg Smith <gsmith(at)gregsmith(dot)com>
Cc: Craig James <craig_james(at)emolecules(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: Benchmark: Dell/Perc 6, 8 disk RAID 10
Date: 2008-03-13 21:06:18
Message-ID: 20080313140618.3449ba58@commandprompt.com
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On Thu, 13 Mar 2008 12:01:50 -0400 (EDT)
Greg Smith <gsmith(at)gregsmith(dot)com> wrote:

> On Thu, 13 Mar 2008, Craig James wrote:
>
> >> wal_sync_method = open_sync
>
> There was a bug report I haven't had a chance to investigate yet that
> suggested some recent Linux versions have issues when using
> open_sync. I'd suggest popping that back to the default for now
> unless you have time to really do a long certification process that
> your system runs reliably with it turned on.

Well the default would be ugly, that's fsync, fdatasync is probably a
better choice in that case.

Sincerely,

Joshua D. Drake

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