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Message-ID: <1289329348.2191.69.camel@laptop>
Date: Tue, 09 Nov 2010 20:02:28 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: Kyle McMartin <kyle@...artin.ca>
Cc: Venkatesh Pallipadi <venki@...gle.com>,
Damien Wyart <damien.wyart@...e.fr>,
Chase Douglas <chase.douglas@...onical.com>,
Ingo Molnar <mingo@...e.hu>, tmhikaru@...il.com,
Thomas Gleixner <tglx@...utronix.de>,
linux-kernel@...r.kernel.org
Subject: Re: High CPU load when machine is idle (related to PROBLEM:
Unusually high load average when idle in 2.6.35, 2.6.35.1 and later)
On Tue, 2010-11-09 at 13:55 -0500, Kyle McMartin wrote:
> On Fri, Oct 29, 2010 at 09:42:23PM +0200, Peter Zijlstra wrote:
> >
> > not tested other than compile, but how does that look...?
> >
>
> Hi Peter,
>
> I finally got around to building a test kernel for a user who had been
> reporting this against F-14 (2.6.35) but they report there's not much
> improvement.
>
> Sorry. :/
Right, I tested it myself yesterday and got similar results. Does the
'simple' patch from a few posts back work for people?
http://lkml.org/lkml/2010/10/26/150
If that does work I fudged the fancy math, if that doesn't work either
we're back to square zero.
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