From: Richard Yen <dba@richyen.com>
To: pgsql-performance@postgresql.org
Subject: good effective_io_concurrency for FusionIO drives?
Date: Thu, 25 Mar 2010 15:19:34 -0700
Message-ID: <E302F8A8-8762-40F3-9DA2-268210EFE52A@richyen.com> (raw)
Hello,
Wondering what's a good value for effective_io_concurrency when dealing with FusionIO drives...anyone have any experience with this?
I know that SSDs vary from 10 channels to 30, and that 1 SSD about as fast as a 4-drive RAID, but I can't seem to settle on a good value to use for effective_io_concurrency. Has anyone done any performance testing/metrics with the value? Any recommendations or thoughts?
--Richard
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To: pgsql-performance@postgresql.org
Cc: dba@richyen.com
Subject: Re: good effective_io_concurrency for FusionIO drives?
In-Reply-To: <E302F8A8-8762-40F3-9DA2-268210EFE52A@richyen.com>
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