From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934439AbXHAPIX (ORCPT ); Wed, 1 Aug 2007 11:08:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933295AbXHAPIG (ORCPT ); Wed, 1 Aug 2007 11:08:06 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:53730 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933378AbXHAPIE (ORCPT ); Wed, 1 Aug 2007 11:08:04 -0400 Date: Wed, 1 Aug 2007 17:07:42 +0200 From: Ingo Molnar To: Roman Zippel Cc: Mike Galbraith , Linus Torvalds , Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: CFS review Message-ID: <20070801150742.GA23670@elte.hu> References: <20070711211638.GE18767@one.firstfloor.org> <20070711214649.GK14435@v2.random> <1184302024.6709.11.camel@Homer.simpson.net> <1184389456.6632.13.camel@Homer.simpson.net> <20070801071230.GA16375@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.14 (2007-02-12) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.1.7-deb -1.0 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Roman Zippel wrote: > > Please also send me the output of this script: > > > > http://people.redhat.com/mingo/cfs-scheduler/tools/cfs-debug-info.sh > > Send privately. thanks. Just to make sure, while you said that your TSC was off on that laptop, the bootup log of yours suggests a working TSC: Time: tsc clocksource has been installed. and still your fl.c testcases produces the top output that you've reported in your first mail? If so then this could be a regression. Or did you turn off the tsc manually via notsc? (or was it with a different .config or on a different machine)? Please help us figure this out exactly, we dont want a real regression go unnoticed. If you can reproduce that problem with a working TSC then please generate a second cfs-debug-info.sh snapshot _while_ your fl+l workload is running and send that to me (i'll reply back to it publicly). Thanks, Ingo