linux-kernel - Re: high power consumption in recent kernels

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Date:	Thu, 8 Jul 2010 20:08:21 -0700
From:	Arjan van de Ven <arjan@...radead.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Mike Galbraith <efault@....de>,
	Norbert Preining <preining@...ic.at>,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	akpm <akpm@...ux-foundation.org>, tglx <tglx@...utronix.de>
Subject: Re: high power consumption in recent kernels

On Thu, 08 Jul 2010 22:44:14 +0200
Peter Zijlstra <peterz@...radead.org> wrote:

> On Thu, 2010-07-08 at 21:40 +0200, Mike Galbraith wrote:
> > > Mike could you re-run your netperf tests that showed the 10%
> > > throughput gain? Hopefully the fixed governor will yield the same
> > > result and we can kill off this ratelimit thing.
> > 
> > The gain is (well was last time I checked), but as noted, I'd just
> > call it a misguided optimization and be done with it. 
> 
> It would still be good to know what your machine does, if you can
> still see a difference there might still be something to look at.
> 

yeah and if you give me a reason / workload to improve the idle
governor even more.....


-- 
Arjan van de Ven 	Intel Open Source Technology Centre
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org
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