Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753922Ab0K1SIV (ORCPT ); Sun, 28 Nov 2010 13:08:21 -0500 Received: from lennier.cc.vt.edu ([198.82.162.213]:52868 "EHLO lennier.cc.vt.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753795Ab0K1SIU (ORCPT ); Sun, 28 Nov 2010 13:08:20 -0500 X-Mailer: exmh version 2.7.2 01/07/2005 with nmh-1.2 To: Damien Wyart Cc: Peter Zijlstra , tmhikaru@gmail.com, Venkatesh Pallipadi , Chase Douglas , Ingo Molnar , Thomas Gleixner , linux-kernel@vger.kernel.org, Kyle McMartin 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) In-Reply-To: Your message of "Sun, 28 Nov 2010 12:40:27 +0100." <20101128114027.GA2745@brouette> From: Valdis.Kletnieks@vt.edu References: <1288101958.15336.284.camel@twins> <1288381343.1988.12.camel@laptop> <20101109185516.GQ8332@bombadil.infradead.org> <1289329348.2191.69.camel@laptop> <20101110034507.GV8332@bombadil.infradead.org> <1289390424.2191.98.camel@laptop> <20101114051406.GA2050@roll> <20101125133106.GA12914@brouette> <1290693807.2145.36.camel@laptop> <1290888920.32004.1.camel@laptop> <20101128114027.GA2745@brouette> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1290967623_5841P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Sun, 28 Nov 2010 13:07:03 -0500 Message-ID: <88912.1290967623@localhost> X-Mirapoint-Received-SPF: 128.173.34.98 localhost Valdis.Kletnieks@vt.edu 2 pass X-Mirapoint-IP-Reputation: reputation=neutral-1, source=Fixed, refid=n/a, actions=MAILHURDLE SPF TAG X-Junkmail-Status: score=10/50, host=vivi.cc.vt.edu X-Junkmail-Signature-Raw: score=unknown, refid=str=0001.0A020206.4CF29A48.0047,ss=1,fgs=0, ip=0.0.0.0, so=2010-07-22 22:03:31, dmn=2009-09-10 00:05:08, mode=single engine X-Junkmail-IWF: false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1181 Lines: 36 --==_Exmh_1290967623_5841P Content-Type: text/plain; charset=us-ascii On Sun, 28 Nov 2010 12:40:27 +0100, Damien Wyart said: > Hi, > > * Peter Zijlstra [2010-11-27 21:15]: > > How does this work for you? Its hideous but lets start simple. > > [...] > > Doesn't give wrong numbers like initial bug and tentative patches, but > feels a bit too slow when numbers go up and down. Correct values are > reached when waiting long enough, but it feels slow. Umm.. maybe the code still averages the 1/5/15 over that many minute's worth of ticks, which may be longer for a tickless kernel? --==_Exmh_1290967623_5841P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQFM8ppHcC3lWbTT17ARAswLAKDxaQF2ERWpxZ8cKrUhLqYZXTHKFACfQhYn hn4HgdTs5BKjnzDABCAwOcM= =KFNw -----END PGP SIGNATURE----- --==_Exmh_1290967623_5841P-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/