Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758546AbXISVtp (ORCPT ); Wed, 19 Sep 2007 17:49:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751658AbXISVth (ORCPT ); Wed, 19 Sep 2007 17:49:37 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:40598 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751148AbXISVth (ORCPT ); Wed, 19 Sep 2007 17:49:37 -0400 Date: Wed, 19 Sep 2007 23:49:26 +0200 From: Ingo Molnar To: Linus Torvalds Cc: Chuck Ebbert , Antoine Martin , Satyam Sharma , Linux Kernel Development , Peter Zijlstra Subject: Re: CFS: some bad numbers with Java/database threading [FIXED] Message-ID: <20070919214926.GA15158@elte.hu> References: <46EAA7E4.8020700@nagafix.co.uk> <20070914153216.GA27213@elte.hu> <46F00417.7080301@redhat.com> <20070918224656.GA26719@elte.hu> <46F058EE.1080408@redhat.com> <20070919191837.GA19500@elte.hu> <20070919195633.GA23595@elte.hu> <20070919214105.GA12245@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070919214105.GA12245@elte.hu> User-Agent: Mutt/1.5.14 (2007-02-12) 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=3.1.7-deb -1.5 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 Content-Length: 1427 Lines: 42 * Ingo Molnar wrote: > Peter, what do you think? > > Linus, if this would be acceptable for .23 then i'll push it out into > sched.git together with another fix that Hiroshi Shimamoto just posted > to lkml. it's getting late here so i've pushed the current version of those two patches out to: git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched.git I'll redo this git tree if we want some other solution for yield. (but i think this is the safest approach for 2.6.23 - some apps will complain about too strong yield, some apps will complain about too weak yield. So by providing the two extremes we at least cover the practical range of behavior.) there's nothing else pending for 2.6.23 otherwise at the moment, scheduler-wise. Ingo ------------------> Hiroshi Shimamoto (1): sched: fix invalid sched_class use Ingo Molnar (1): sched: add /proc/sys/kernel/sched_compat_yield include/linux/sched.h | 1 kernel/sched.c | 10 ++++--- kernel/sched_fair.c | 63 +++++++++++++++++++++++++++++++++++++++++++++----- kernel/sysctl.c | 8 ++++++ 4 files changed, 72 insertions(+), 10 deletions(-) - 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/