linux-kernel - Re: 3.0.0-rc6 ~9X system time degradation on kernbench

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Message-ID: <4E17A4BF.5050500@redhat.com>
Date:	Fri, 08 Jul 2011 20:45:51 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Prarit Bhargava <prarit@...hat.com>
CC:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: 3.0.0-rc6 ~9X system time degradation on kernbench

On 07/08/2011 03:36 PM, Prarit Bhargava wrote:
> Just some numbers out of kernbench.  System Time&  Context Switches
> climb dramatically between 2.6.38 and 3.0.0-rc6.  Currently bisecting to
> find out why.  .config is based on Fedora's x86_64 .config.

For the record, I am also seeing dramatically increased
CPU use with the 3.0-rc kernel, vs 2.6.38.

I first attributed it to me upgrading my video card, but
Prarit is seeing slowdowns too, so it's not just me...

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