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
next prev parent 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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