From: Richard Huxton <dev@archonet.com>
To: creimer@brturbo.com.br
Cc: pgsql-performance@postgresql.org
Subject: Re: Context switch storm
Date: Fri, 03 Nov 2006 14:38:25 +0000
Message-ID: <454B5461.4030802@archonet.com> (raw)
In-Reply-To: <c4069b084d04.454b27e4@brturbo.com.br>
References: <efc1d7c07cf.454afe8d@brturbo.com.br>
<454B3B75.6@archonet.com>
<c4069b084d04.454b27e4@brturbo.com.br>
creimer@brturbo.com.br wrote:
>> If you can keep your numbers of clients down below the critical
>> level, you should find the overall workload is fine.
>
> We have at about 600 connections. Is this a case to use a connection
> pool (pg_pool) system?
Possibly - that should help. I'm assuming that most of your queries are
very short, so you could probably get that figure down a lot lower.
You'll keep the same amount of queries running through the system, just
queue them up.
> And why this happens only with 8.0 and 8.1 and not with the 7.4?
Not sure. Maybe 8.x is making more intensive use of your memory,
possibly with a change in your plans.
--
Richard Huxton
Archonet Ltd
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To: pgsql-performance@postgresql.org
Cc: dev@archonet.com, creimer@brturbo.com.br
Subject: Re: Context switch storm
In-Reply-To: <454B5461.4030802@archonet.com>
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