Re: volano ~30% regression with 2.6.33-rc1 & -rc2

From: Arjan van de Ven
Date: Mon Jan 04 2010 - 07:38:00 EST


On Mon, 04 Jan 2010 16:15:58 +0800
Lin Ming <ming.m.lin@xxxxxxxxx> wrote:

> Mike & Peter,
>
> Compared with 2.6.32, volano has ~30% regression with 2.6.33-rc1 &
> -rc2. Testing machine: Tigerton Xeon, 16cpus(4P/4Core), 16G memory

did this show up only on this cpu?
(since this is a multi-core-without-shared-cache cpu, it could be that
we get the topology wrong and think cores share cache where they don't)


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Arjan van de Ven Intel Open Source Technology Centre
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