Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752640Ab0K1Lkw (ORCPT ); Sun, 28 Nov 2010 06:40:52 -0500 Received: from mailhost-p4-m2.nerim.net ([78.40.49.191]:53123 "EHLO smtp-delay2.nerim.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752358Ab0K1Lkv (ORCPT ); Sun, 28 Nov 2010 06:40:51 -0500 Date: Sun, 28 Nov 2010 12:40:27 +0100 From: Damien Wyart To: Peter Zijlstra Cc: 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) Message-ID: <20101128114027.GA2745@brouette> 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> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1290888920.32004.1.camel@laptop> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 807 Lines: 23 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. As I've tested many combinations, maybe this is an impression because I do not remember about "normal" delays for the load to rise and fall, but this still feels slow. Thanks for working on this problem again. -- Damien Wyart -- 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/