linux-kernel - Re: power increase issue on light load

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Date:	Tue, 28 Jun 2011 08:02:09 +0800
From:	"Alex,Shi" <alex.shi@...el.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	"ncrao@...gle.com" <ncrao@...gle.com>,
	"mingo@...e.hu" <mingo@...e.hu>,
	"Chen, Tim C" <tim.c.chen@...el.com>,
	"Li, Shaohua" <shaohua.li@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	len.brown@...el.com
Subject: Re: power increase issue on light load

> > 
> > What happens if you try something like the below. Increased imbalance
> > might lead to more load-balance action, which might lead to more task
> > migration/waking up of cpus etc.
> > 
> > If the below makes any difference, Nikhil's changes have a funny that
> > needs to be caught.
> 
> Yes, it most remove the commit effect, So the power recovered. 
> 
> In fact the only suspicious I found is large imbalance, but that is
> the commit want ...

Any further comments for this? 



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