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Re: Hardware/OS recommendations for large databases ( - Mailing list pgsql-performance

From Michael Stone
Subject Re: Hardware/OS recommendations for large databases (
Date
Msg-id 20051115145545.GQ9905@mathom.us
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In response to Re: Hardware/OS recommendations for large databases (  ("Luke Lonergan" <LLonergan@greenplum.com>)
Responses Re: Hardware/OS recommendations for large databases (  ("Luke Lonergan" <llonergan@greenplum.com>)
List pgsql-performance
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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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