From: tmhikaru@gmail.com
To: Peter Zijlstra <peterz@infradead.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>,
Venkatesh Pallipadi <venki@google.com>,
Damien Wyart <damien.wyart@free.fr>,
Chase Douglas <chase.douglas@canonical.com>,
Ingo Molnar <mingo@elte.hu>,
tmhikaru@gmail.com, Thomas Gleixner <tglx@linutronix.de>,
linux-kernel@vger.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)
Date: Tue, 9 Nov 2010 21:37:56 -0500 [thread overview]
Message-ID: <20101110023755.GB27340@roll> (raw)
In-Reply-To: <1289329348.2191.69.camel@laptop>
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On Tue, Nov 09, 2010 at 08:02:28PM +0100, Peter Zijlstra wrote:
> 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.
I seem to remember someone saying this would only work on x86-64; if this is
meant to work with a 32bit intel single core processor, please let me know -
I'd like to try it. It would also help if I knew which kernel version this
simpler patch is meant to apply to.
Thank you,
Tim McGrath
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next prev parent reply other threads:[~2010-11-10 2:38 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-29 7:01 High CPU load when machine is idle Damien Wyart
2010-10-14 14:58 ` 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) Damien Wyart
2010-10-14 15:29 ` Chase Douglas
2010-10-14 15:56 ` Damien Wyart
2010-10-15 11:08 ` Peter Zijlstra
2010-10-18 12:32 ` Peter Zijlstra
2010-10-20 13:27 ` Damien Wyart
2010-10-20 13:30 ` Peter Zijlstra
2010-10-20 13:43 ` Peter Zijlstra
2010-10-20 14:14 ` Peter Zijlstra
2010-10-20 14:25 ` Peter Zijlstra
2010-10-20 17:26 ` Peter Zijlstra
2010-10-20 20:24 ` Damien Wyart
2010-10-21 1:48 ` tmhikaru
2010-10-21 1:53 ` tmhikaru
2010-10-21 8:22 ` Ingo Molnar
2010-10-21 8:57 ` tmhikaru
2010-10-21 18:36 ` tmhikaru
2010-10-22 1:37 ` tmhikaru
2010-10-21 12:09 ` Peter Zijlstra
2010-10-21 17:18 ` Venkatesh Pallipadi
2010-10-22 21:03 ` Venkatesh Pallipadi
2010-10-22 23:03 ` 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) Venkatesh Pallipadi
2010-10-23 2:13 ` tmhikaru
2010-10-25 10:12 ` Peter Zijlstra
2010-10-25 16:29 ` Venkatesh Pallipadi
2010-10-26 12:44 ` Peter Zijlstra
2010-10-26 14:05 ` Peter Zijlstra
2010-10-29 19:42 ` Peter Zijlstra
2010-11-09 18:55 ` Kyle McMartin
2010-11-09 19:02 ` Peter Zijlstra
2010-11-10 2:37 ` tmhikaru [this message]
2010-11-10 12:01 ` Peter Zijlstra
2010-11-10 3:45 ` Kyle McMartin
2010-11-10 12:00 ` Peter Zijlstra
2010-11-14 5:14 ` tmhikaru
2010-11-25 13:31 ` Damien Wyart
2010-11-25 14:03 ` Peter Zijlstra
2010-11-27 20:15 ` Peter Zijlstra
2010-11-28 4:26 ` Kyle McMartin
2010-11-28 11:40 ` Damien Wyart
2010-11-28 18:07 ` Valdis.Kletnieks
2010-11-29 11:38 ` Peter Zijlstra
2010-11-29 19:40 ` tmhikaru
2010-11-29 23:01 ` Peter Zijlstra
2010-11-30 14:59 ` Peter Zijlstra
2010-11-30 15:39 ` Kyle McMartin
2010-11-30 20:04 ` Kyle McMartin
2010-11-30 16:53 ` Damien Wyart
2010-11-30 17:29 ` Peter Zijlstra
2010-12-01 21:27 ` tmhikaru
2010-12-02 10:16 ` tmhikaru
2010-12-08 20:40 ` [tip:sched/urgent] sched: Cure more NO_HZ load average woes tip-bot for Peter Zijlstra
2010-11-30 20:01 ` 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) tmhikaru
2010-11-30 16:49 ` Damien Wyart
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