linux-kernel - Re: [PATCH 2/5] sched: factor out code to should_we

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Message-ID: <20130401051042.GC12015@lge.com>
Date:	Mon, 1 Apr 2013 14:10:42 +0900
From:	Joonsoo Kim <iamjoonsoo.kim@....com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
	Mike Galbraith <efault@....de>, Paul Turner <pjt@...gle.com>,
	Alex Shi <alex.shi@...el.com>,
	Preeti U Murthy <preeti@...ux.vnet.ibm.com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Morten Rasmussen <morten.rasmussen@....com>,
	Namhyung Kim <namhyung@...nel.org>
Subject: Re: [PATCH 2/5] sched: factor out code to should_we_balance()

Hello, Peter.

On Fri, Mar 29, 2013 at 12:45:14PM +0100, Peter Zijlstra wrote:
> On Thu, 2013-03-28 at 16:58 +0900, Joonsoo Kim wrote:
> > There is not enough reason to place this checking at
> > update_sg_lb_stats(),
> > except saving one iteration for sched_group_cpus. But with this
> > change,
> > we can save two memset cost and can expect better compiler
> > optimization,
> > so clean-up may be more beneficial to us.
> 
> It would be good if you'd described what you actually did, there's a
> lot of code movement and now I have to figure out wth you did and why.

Okay. I will do that when respin.

Thanks.

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