linux-kernel - Re: [RFC PATCH 0/2] sched: simplify the select_task_rq

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Message-ID: <50F5129C.5030906@linux.vnet.ibm.com>
Date:	Tue, 15 Jan 2013 16:26:04 +0800
From:	Michael Wang <wangyun@...ux.vnet.ibm.com>
To:	Mike Galbraith <bitbucket@...ine.de>
CC:	linux-kernel@...r.kernel.org, mingo@...hat.com,
	peterz@...radead.org, mingo@...nel.org, a.p.zijlstra@...llo.nl
Subject: Re: [RFC PATCH 0/2] sched: simplify the select_task_rq_fair()

On 01/15/2013 12:52 PM, Mike Galbraith wrote:
> On Tue, 2013-01-15 at 11:10 +0800, Michael Wang wrote: 
>> hanks for the testing, could you please tell me which benchmark
>> generate these results?
> 
> aim7, using the compute workfile, and a datapoints file containing
> $Tasks.  multitask -nl -f will prompt for the datapoints file.  You'll
> have to bump /proc/sys/kernel/sem if it's left at default by your
> distro.  If you want, I can send you a tarball offline.
> 
>> I will try to re-base the patch into 3.8-rc3 with consideration of NUMA
>> domain, I suppose it could fix the below BUG and provide a better results.
> 
> I don't _think_ you'll fix the sweet spot without setting knobs such
> that last_buddy can do its thing, but go for it ;-)

Hmm... I'm a little confusing, let's discuss on the next version if
issues are still there :)

Regards,
Michael Wang

> 
> -Mike
> 
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