Re: Question about shared_buffers and cpu usage

From: Dave Cramer <pg(at)fastcrypt(dot)com>
To: bh yuan <bhyuan(at)gmail(dot)com>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: Question about shared_buffers and cpu usage
Date: 2008-02-21 12:24:01
Message-ID: 0DCE2361-E0B5-49F3-9E4D-B87B06DFBADC@fastcrypt.com
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On 21-Feb-08, at 12:13 AM, bh yuan wrote:

> Hi
>
> I am using Postgres8.3 on 8G memory , Xeon X5355 Quad Core x 2
> processer RH5 machine with 10G data. (with some table which have
> about 2,000,000~ 5,000,000 rows )
>
> I have two quesion.
> 1. how to set the shared_buffers and other postgresql.conf parameter
> for best performance?
> I only run the Postgres8.3 on the machine so I set the shared_buffers
> = 7168MB (7G)
> But somebody said it is too big, so confused.

Yes, it is too big! make it 2G to start
>

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