From: Andrew Morton <akpm@linux-foundation.org>
To: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: volanoMark regression with kernel 2.6.26-rc1
Date: Wed, 7 May 2008 00:04:09 -0700 [thread overview]
Message-ID: <20080507000409.4ecc7d30.akpm@linux-foundation.org> (raw)
In-Reply-To: <1210039590.3453.18.camel@ymzhang>
On Tue, 06 May 2008 10:06:30 +0800 "Zhang, Yanmin" <yanmin_zhang@linux.intel.com> wrote:
> Comparing with 2.6.25, volanoMark has big regression with kernel 2.6.26-rc1.
> It's about 50% on my 8-core stoakley, 16-core tigerton, and Itanium Montecito.
>
> With bisect, I located below patch.
>
> 18d95a2832c1392a2d63227a7a6d433cb9f2037e is first bad commit
> commit 18d95a2832c1392a2d63227a7a6d433cb9f2037e
> Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
> Date: Sat Apr 19 19:45:00 2008 +0200
The merge window strikes again?
>
> sched: fair-group: SMP-nice for group scheduling
>
> Implement SMP nice support for the full group hierarchy.
>
> If I reverse the patch with resolving some conflictions, volanoMark result could
> be restored completely.
>
> ___
> AIM7 (use tmpfs) also has ___more than 40% on my 8-core stoakley, 16-core tigerton,
> and Itanium Montecito, but I verified that aim7 regression isn't caused by above
> patch. I am doing new bisect to check aim7 now.
>
next prev parent reply other threads:[~2008-05-07 7:04 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-06 2:06 volanoMark regression with kernel 2.6.26-rc1 Zhang, Yanmin
2008-05-06 5:41 ` Zhang, Yanmin
2008-05-06 11:52 ` Dhaval Giani
2008-05-07 17:33 ` Dhaval Giani
2008-05-08 5:18 ` Zhang, Yanmin
2008-05-08 5:32 ` Dhaval Giani
2008-05-08 5:40 ` Dhaval Giani
2008-05-08 5:53 ` Zhang, Yanmin
2008-05-08 6:04 ` Dhaval Giani
2008-05-08 6:11 ` Srivatsa Vaddagiri
2008-05-09 15:52 ` Srivatsa Vaddagiri
2008-05-09 15:54 ` Srivatsa Vaddagiri
2008-05-12 1:39 ` Zhang, Yanmin
2008-05-12 2:04 ` Dhaval Giani
2008-05-12 2:37 ` Srivatsa Vaddagiri
2008-05-12 3:33 ` Zhang, Yanmin
2008-05-12 4:52 ` Srivatsa Vaddagiri
2008-05-12 5:02 ` Zhang, Yanmin
2008-05-12 5:43 ` Zhang, Yanmin
2008-05-12 9:04 ` Mike Galbraith
2008-05-12 9:20 ` Peter Zijlstra
2008-05-14 9:22 ` Zhang, Yanmin
2008-05-14 13:44 ` Srivatsa Vaddagiri
2008-05-14 14:50 ` Mike Galbraith
2008-05-14 15:12 ` Peter Zijlstra
2008-05-15 8:20 ` Srivatsa Vaddagiri
2008-05-15 8:41 ` Peter Zijlstra
2008-05-15 17:10 ` Srivatsa Vaddagiri
2008-05-07 7:04 ` Andrew Morton [this message]
2008-05-07 9:17 ` Ingo Molnar
2008-05-07 9:33 ` Zhang, Yanmin
2008-05-07 17:34 ` Peter Zijlstra
2008-05-07 18:58 ` Peter Zijlstra
2008-05-08 6:07 ` Zhang, Yanmin
2008-05-08 5:20 ` Zhang, Yanmin
2008-05-08 5:34 ` Dhaval Giani
2008-05-08 6:43 ` Peter Zijlstra
2008-05-07 17:42 ` Dhaval Giani
2008-05-08 5:21 ` Zhang, Yanmin
2008-05-08 5:39 ` Dhaval Giani
2008-05-08 6:03 ` Zhang, Yanmin
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