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* volanoMark regression with kernel 2.6.26-rc1
@ 2008-05-06  2:06 Zhang, Yanmin
  2008-05-06  5:41 ` Zhang, Yanmin
                   ` (4 more replies)
  0 siblings, 5 replies; 41+ messages in thread
From: Zhang, Yanmin @ 2008-05-06  2:06 UTC (permalink / raw)
  To: Peter Zijlstra; +Cc: LKML

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



^ permalink raw reply	[flat|nested] 41+ messages in thread

end of thread, other threads:[~2008-05-15 17:01 UTC | newest]

Thread overview: 41+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
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
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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