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From: Luke Lonergan <llonergan@greenplum.com>
To: Steve Poe <steve.poe@gmail.com>
Cc: Alex Turner <armtuk@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Postgresql Performance on an HP DL385 and
Date: Tue, 08 Aug 2006 09:22:15 -0700
Message-ID: <C0FE0847.2D986%llonergan@greenplum.com> (raw)
In-Reply-To: <721b21dc0608080801l5fb6534ey7094774ff79a323b@mail.gmail.com>

Steve,

On 8/8/06 8:01 AM, "Steve Poe" <steve.poe@gmail.com> wrote:

> Thanks for the feedback.  I use the same database test that I've run a Sun
> dual Opteron with 4Gb RAM and (2) four disk arrays in RAID10. The sun box with
> one disc on an LSI MegaRAID 2-channel adapter outperforms this HP box. I
> though I was doing something wrong or there is something wrong with the box.

Given the circumstances (benchmarked I/O is great, comparable perf on
another box with single disk is better), seems that one of:
1) something wrong with the CPU/memory on the box
2) something with the OS version / kernel
3) something with the postgres configuration

Can you post the database benchmark results?

- Luke





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