From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754932Ab0JUI5y (ORCPT ); Thu, 21 Oct 2010 04:57:54 -0400 Received: from mail-yx0-f174.google.com ([209.85.213.174]:60399 "EHLO mail-yx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751701Ab0JUI5w (ORCPT ); Thu, 21 Oct 2010 04:57:52 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=Hvgass0QoCQWYLrV0T4jnae+KjRGCWLNoieKbnoWRT1t3QHk6bj+xeGXTQLfLWEDU2 JnyHB3aJi4LbbPEH8RXPa/1h+PDsxy/uzGqy/7B5RymlVuAvujuGz7cHQ6KSd7EHUFOr TOTd9VeKfAe89X83RoRz5aCiVj7L7ad0elD0c= Date: Thu, 21 Oct 2010 04:57:48 -0400 From: tmhikaru@gmail.com To: Ingo Molnar , Peter Zijlstra , Damien Wyart , Chase Douglas , Thomas Gleixner , linux-kernel@vger.kernel.org, Venkatesh Pallipadi 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) Message-ID: <20101021085748.GA26125@roll> References: <20100929070153.GA2200@brouette> <20101014145813.GA2185@brouette> <20101020132732.GA30024@brouette> <1287581440.3488.16.camel@twins> <1287582208.3488.20.camel@twins> <1287584073.3488.22.camel@twins> <1287595605.3488.52.camel@twins> <20101021014843.GA21295@roll> <20101021015337.GA21384@roll> <20101021082233.GD8775@elte.hu> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="ikeVEW9yuYc//A+q" Content-Disposition: inline In-Reply-To: <20101021082233.GD8775@elte.hu> User-Agent: Mutt/1.4.2.3i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --ikeVEW9yuYc//A+q Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Oct 21, 2010 at 10:22:33AM +0200, Ingo Molnar wrote: >=20 > * tmhikaru@gmail.com wrote: >=20 > > On Wed, Oct 20, 2010 at 09:48:43PM -0400, tm@ wrote: > > > On Wed, Oct 20, 2010 at 07:26:45PM +0200, Peter Zijlstra wrote: > > > >=20 > > > >=20 > > > > OK, how does this work for people? I find my idle load is still a t= ad > > > > high, but maybe I'm not patient enough. > > >=20 > > > I haven't had a chance to keep up with the topic, and I apologize. I'= ll be > > > testing this as soon as I can finish compiling it. Thank you all for = not > > > letting this go unfixed. > > >=20 > > > Tim McGrath > >=20 > > Uhh, problem. This patch does not apply to git checkout > > 74f5187ac873042f502227701ed1727e7c5fbfa9 > >=20 > > which is the version of the kernel that first exhibits this flaw. > >=20 > > which version of the kernel does this patch apply cleanly to? >=20 > Try -tip (which includes the scheduler development tree as well): >=20 > http://people.redhat.com/mingo/tip.git/README >=20 > Thanks, >=20 > Ingo Tried that, patch still doesn't apply... and I just figured out why. Looks like my email client is screwing the patch up. mutt apparently wants to chew on my mail before I get it. viewing the mail as an attachment and saving it works properly however. Now that I have properly saved the mail, it applies cleanly to tip/master as well as 74f5187ac873042f502227701ed1727e7c5fbfa9 - though in the latter's case it's having to fuzz around a bit. I'll try testing 74f5187ac873042f502227701ed1727e7c5fbfa9 first since it's the one I *know* is flawed, and I want to reduce the amount of changes that I have to test for. I'll build and test it, then let you guys know if there's any noticable difference. Tim McGrath --ikeVEW9yuYc//A+q Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQEVAwUBTMAAjJEncCrqzVruAQI2nQf/VVfsakXkgdZNbGhzki2Xiit2FTDW3+I9 PI/1NyJ9lGX1GMn8GtAyCwYnTDn36bRepo1CVx1BSx/tqhLdhzm/OyS6jlW260O6 aG3iAZQ2kqLyuNNFq/gI3YuFXorrpaYA595NwhWKkyhUapzeKvqSmrz10zQM56SI I05PCD115+44N9iOYR0ZpUDy+67/MtFdFwHzYNUk8hjg6S1+YBL7SI0wle7Tv3j9 g0IGT8ddIZmBy4/pqyYzwq8OMp58I1YHvR2d9mjwhK8skZ2PvYZdMbDg4EBL3CnT WB6nv30UhZCfoYzV0AL84rlqsT5jsxcNAVEsy23tAyKwp+sXEJ8FYw== =UdhS -----END PGP SIGNATURE----- --ikeVEW9yuYc//A+q--