Re: increasing shared buffers: how much should be removed from OS filesystem cache?

From: "Merlin Moncure" <mmoncure(at)gmail(dot)com>
To: "Guillaume Cottenceau" <gc(at)mnc(dot)ch>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: increasing shared buffers: how much should be removed from OS filesystem cache?
Date: 2006-09-01 19:49:43
Message-ID: b42b73150609011249p612ccd27gbb5ee4db9b5b10f4@mail.gmail.com
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On 01 Sep 2006 19:00:52 +0200, Guillaume Cottenceau <gc(at)mnc(dot)ch> wrote:
> Hi,
>
> I've been looking at the results from the pg_statio* tables, to
> view the impact of increasing the shared buffers to increase
> performance.
>

I think 'shared buffers' is one of the most overrated settings from a
performance standpoint. however you must ensure there is enough for
things the server does besides caching. It used to be a bigger deal
than it is in modern versionf of postgresql modern operating systems.

merlin

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