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From: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
To: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
Cc: Dhaval Giani <dhaval@linux.vnet.ibm.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	LKML <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>,
	Aneesh Kumar KV <aneesh.kumar@linux.vnet.ibm.com>
Subject: Re: volanoMark regression with kernel 2.6.26-rc1
Date: Mon, 12 May 2008 10:22:46 +0530	[thread overview]
Message-ID: <20080512045246.GP3612@linux.vnet.ibm.com> (raw)
In-Reply-To: <1210563200.3151.10.camel@ymzhang>

On Mon, May 12, 2008 at 11:33:20AM +0800, Zhang, Yanmin wrote:
> To make the testing faster, I changed some parameters of volanoMark.
> The result of 2.6.26-rc1(CONFIG_CGROUP_SCHED=y) is about 2%~3% less than the one of
> 2.6.25 (CONFIG_USER_SCHED=y).

This for confirming my observation. It seems much better than the 50% regression
reported earlier (with 2.6.26-rc1 and CONFIG_USER_SCHED).

Ideally we should get same results with CONFIG_USER_SCHED also (in
2.6.26-rc1). That needs some work in load balance code. Till that is
tackled, IMHO we can retain all the current code by either:

1. Disabling CONFIG_GROUP_SCHED (or better)
2. Enable CONFIG_GROUP_SCHED and CONFIG_CGROUP_SCHED

Ingo/Peter, What's your opinion?

-- 
Regards,
vatsa

  reply	other threads:[~2008-05-12  4:42 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 [this message]
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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