From: Michael Stone <mstone+postgres@mathom.us>
To: Luke Lonergan <LLonergan@greenplum.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Hardware/OS recommendations for large databases (
Date: Tue, 15 Nov 2005 09:55:45 -0500
Message-ID: <20051115145545.GQ9905@mathom.us> (raw)
In-Reply-To: <3E37B936B592014B978C4415F90D662D01995FD4@MI8NYCMAIL06.Mi8.com>
References: <3E37B936B592014B978C4415F90D662D01995FD4@MI8NYCMAIL06.Mi8.com>
On Tue, Nov 15, 2005 at 09:33:25AM -0500, Luke Lonergan wrote:
>write performance is now up to par with the best cards I believe. We
>find that you still need to set Linux readahead to at least 8MB
>(blockdev --setra) to get maximum read performance on them, is that your
What on earth does that do to your seek performance?
Mike Stone
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To: pgsql-performance@postgresql.org
Cc: mstone+postgres@mathom.us, LLonergan@greenplum.com
Subject: Re: Hardware/OS recommendations for large databases (
In-Reply-To: <20051115145545.GQ9905@mathom.us>
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