Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760760AbYB2ShK (ORCPT ); Fri, 29 Feb 2008 13:37:10 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756809AbYB2Sg5 (ORCPT ); Fri, 29 Feb 2008 13:36:57 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:40599 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755816AbYB2Sg5 (ORCPT ); Fri, 29 Feb 2008 13:36:57 -0500 Date: Fri, 29 Feb 2008 19:36:39 +0100 From: Ingo Molnar To: ray-lk@madrabbit.org, linux-kernel@vger.kernel.org Subject: Re: Interactivity issue in 2.6.25-rc3 Message-ID: <20080229183639.GC8258@elte.hu> References: <20080228184407.GA7117@localhost.ift.unesp.br> <20080228191824.GA20019@elte.hu> <2c0942db0802281154y3176e847g8b9a4091df5cc8af@mail.gmail.com> <20080228210627.GA4337@localhost.ift.unesp.br> <20080229160408.GG27248@elte.hu> <20080229171442.GA5173@localhost.ift.unesp.br> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080229171442.GA5173@localhost.ift.unesp.br> User-Agent: Mutt/1.5.17 (2007-11-01) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0001] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 831 Lines: 21 * Carlos R. Mafra wrote: > > and obviously, even if you only 'feel' long delays that's too an > > anomaly by definition, no matter what the scripts say about it. It > > might even be a scheduler anomaly as well: for example if the > > scheduler clock has an anomaly - on which the delay statistics are > > based too. > > But if the scripts say all 'se.wait_max' are < 40 msecs than it is not > CFS' fault, right? Even if it takes 3 seconds for a typed letter to > appear in the terminal? yeah, in 99.9% of the cases it's not the scheduler's fault. Ingo -- 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/