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Message-ID: <1d4e0c10702131449x480219d7pfd6797b7ca31ad2d@mail.gmail.com>
Date: Tue, 13 Feb 2007 23:49:36 +0100
From: "Guillaume Smet" <guillaume.smet@gmail.com>
To: "Dan Harris" <fbsd@drivefaster.net>
Subject: Re: quad or dual core Intel CPUs
Cc: "PostgreSQL Performance" <pgsql-performance@postgresql.org>
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References: <20070213194610.GA10789@juniper.net>
	<45D22829.8050503@tweakers.net> <45D239D3.5020501@drivefaster.net>
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Dan,

On 2/13/07, Dan Harris <fbsd@drivefaster.net> wrote:
> Having upgraded to 2.6.18 fairly recently, I am *very* interested in
> what caused the throughput to drop in 2.6.18?  I haven't done any
> benchmarking on my system to know if it affected my usage pattern
> negatively, but I am curious if anyone knows why this happened?

I think you misread the graph. PostgreSQL 8.2 seems to be
approximately 20% faster with kernel 2.6.18 on the platforms tested
(and using tweakers.net benchmark).

--
Guillaume