From: Michael Stone <mstone+postgres@mathom.us>
To: Jeffrey W. Baker <jwbaker@acm.org>
Cc: pgsql-performance@postgresql.org
Subject: Re: more filesystem benchmarks
Date: Sat, 16 Jul 2005 07:01:08 -0400
Message-ID: <20050716110108.GL19080@mathom.us> (raw)
In-Reply-To: <1121501547.7101.18.camel@noodles>
References: <1121501547.7101.18.camel@noodles>
On Sat, Jul 16, 2005 at 01:12:27AM -0700, Jeffrey W. Baker wrote:
>Another frequent suggestion is to put the xlog on a separate device. I
>tried this, and, for a given number of disks, it appears to be
>counter-productive. A RAID5 of 5 disks holding both logs and data is
>about 15% faster than a RAID5 of 3 disks with the data, and a mirror of
>two disks holding the xlog.
Try simply a seperate partition on the same device with a different
filesystem (ext2).
Mike Stone
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To: pgsql-performance@postgresql.org
Cc: mstone+postgres@mathom.us, jwbaker@acm.org
Subject: Re: more filesystem benchmarks
In-Reply-To: <20050716110108.GL19080@mathom.us>
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