Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758478AbYBRE3b (ORCPT ); Sun, 17 Feb 2008 23:29:31 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756128AbYBRE3V (ORCPT ); Sun, 17 Feb 2008 23:29:21 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:43996 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756054AbYBRE3U (ORCPT ); Sun, 17 Feb 2008 23:29:20 -0500 Date: Mon, 18 Feb 2008 05:28:31 +0100 From: Ingo Molnar To: Lukas Hejtmanek Cc: Srivatsa Vaddagiri , mingo@redhat.com, linux-kernel@vger.kernel.org, a.p.zijlstra@chello.nl, dhaval@linux.vnet.ibm.com, aneesh.kumar@in.ibm.com, efault@gmx.de Subject: Re: 2.6.24-git4+ regression Message-ID: <20080218042831.GJ30201@elte.hu> References: <20080130135609.GA5100@ics.muni.cz> <20080214165551.GA21963@linux.vnet.ibm.com> <20080217202642.GA4327@ics.muni.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080217202642.GA4327@ics.muni.cz> 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: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 904 Lines: 23 * Lukas Hejtmanek wrote: > On Thu, Feb 14, 2008 at 10:25:51PM +0530, Srivatsa Vaddagiri wrote: > > The patch is against 2.6.25-rc1. I would request you to check for > > difference it makes with CONFIG_FAIR_GROUP_SCHED and > > CONFIG_FAIR_USER_SCHED turned on. > > well, I tried the patch against 2.6.25-rc2-git1. It seems to be better > but without CONFIG_FAIR_GROUP_SCHED it is still even better. could you try latest sched-devel.git, does it behave any better? It includes patches from Peter Zijlstra that should also address latencies under the group scheduler: http://people.redhat.com/mingo/sched-devel.git/README 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/