Re: High concurrency OLTP database performance tuning

From: "Guillaume Smet" <guillaume(dot)smet(at)gmail(dot)com>
To: "Cosimo Streppone" <cosimo(at)streppone(dot)it>
Cc: "Pg Performance list" <pgsql-performance(at)postgresql(dot)org>
Subject: Re: High concurrency OLTP database performance tuning
Date: 2006-08-31 17:06:29
Message-ID: 1d4e0c10608311006n259e2fabm5d70b420040ea2e0@mail.gmail.com
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Cosimo,

On 8/31/06, Cosimo Streppone <cosimo(at)streppone(dot)it> wrote:
> The problem is that under peak load, when n. of concurrent transactions
> raises, there is a sensible performance degradation.

Could you give us more information about the performance degradation?
Especially cpu load/iostat/vmstat data when the problem occurs can be
interesting.

--
Guillaume

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