From: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: volanoMark regression with kernel 2.6.26-rc1
Date: Tue, 06 May 2008 10:06:30 +0800 [thread overview]
Message-ID: <1210039590.3453.18.camel@ymzhang> (raw)
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
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.
-yanmin
next reply other threads:[~2008-05-06 2:07 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-06 2:06 Zhang, Yanmin [this message]
2008-05-06 5:41 ` volanoMark regression with kernel 2.6.26-rc1 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
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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