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Message-ID: <47B91008.8050505@linux.vnet.ibm.com>
Date: Mon, 18 Feb 2008 10:26:40 +0530
From: Balbir Singh <balbir@...ux.vnet.ibm.com>
To: "Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>
CC: vatsa@...ux.vnet.ibm.com, LKML <linux-kernel@...r.kernel.org>,
Ingo Molnar <mingo@...e.hu>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: 2.6.25-rc1: volanoMark 45% regression
Zhang, Yanmin wrote:
>>
>>> Did you have
>>> CONFIG_FAIR_USER_SCHED enabled in both cases?
>> Yes.
>>
>> CONFIG_FAIR_GROUP_SCHED=y
>> CONFIG_FAIR_USER_SCHED=y
>>
Interesting that you have CONFIG_FAIR_USER_SCHED. Do you have any other users on
the system (are they running anything at the time of the benchmark)? Could you
turn off CONFIG_FAIR_USER_SCHED and turn on CONFIG_FAIR_GROUP_SCHED. I am going
to run some tests with 2.6.25-rc2 and Volanomark and see how that goes.
--
Warm Regards,
Balbir Singh
Linux Technology Center
IBM, ISTL
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