Re: quad or dual core Intel CPUs

From: Dan Harris <fbsd(at)drivefaster(dot)net>
To: PostgreSQL Performance <pgsql-performance(at)postgresql(dot)org>
Subject: Re: quad or dual core Intel CPUs
Date: 2007-02-13 22:21:07
Message-ID: 45D239D3.5020501@drivefaster.net
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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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