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From: Dan Harris <fbsd@drivefaster.net>
To: PostgreSQL Performance <pgsql-performance@postgresql.org>
Subject: Re: quad or dual core Intel CPUs
Date: Tue, 13 Feb 2007 15:21:07 -0700
Message-ID: <45D239D3.5020501@drivefaster.net> (raw)
In-Reply-To: <45D22829.8050503@tweakers.net>
References: <20070213194610.GA10789@juniper.net>
	<45D22829.8050503@tweakers.net>

Arjen van der Meijden wrote:

> 
> But be aware that there can be substantial and unexpected differences on 
> this relatively new platform due to simply changing the OS, like we saw 
> when going from linux 2.6.15 to 2.6.18, as you can see here:
> http://tweakers.net/reviews/657/2


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?

-Dan



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