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

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Message-ID: <1358225532.25910.37.camel@marge.simpson.net>
Date:	Tue, 15 Jan 2013 05:52:12 +0100
From:	Mike Galbraith <bitbucket@...ine.de>
To:	Michael Wang <wangyun@...ux.vnet.ibm.com>
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 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 ;-)

-Mike

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