linux-kernel - Re: Hyperthreading performance oddities

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Message-ID: <20080222100630.GE5906@slug>
Date:	Fri, 22 Feb 2008 11:06:30 +0100
From:	Frederik Deweerdt <deweerdt@...e.fr>
To:	belcampo <belcampo@...net.nl>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Hyperthreading performance oddities

Hello Henk,

On Fri, Feb 22, 2008 at 10:36:01AM +0100, belcampo wrote:
> Kernel 2.6.22.9 smp hyperthreading
> BENCHMARKs: VC: 334.042s VO:   0.053s A:   0.000s Sys:   4.049s =  338.143s
> Kernel 2.6.22.9 nonsmp/hyperthreading
> BENCHMARKs: VC: 262.008s VO:   0.031s A:   0.000s Sys:   3.528s =  265.567s
> with 2.6.17 kernel smp/hyperthreading pentium-pro as CPU
> BENCHMARKs: VC: 245.175s VO:   0.050s A:   0.000s Sys:   2.479s =  247.704s
> with 2.6.17 kernel smp/hyperthreading pentium4 optimized kernel
> BENCHMARKs: VC: 227.992s VO:   0.051s A:   0.000s Sys:   2.551s =  230.594s
I'm not familiar with mplayer benchmarks, what do they actually
measure?

Regards,
Frederik
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