From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759787AbXHUHdT (ORCPT ); Tue, 21 Aug 2007 03:33:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751115AbXHUHdK (ORCPT ); Tue, 21 Aug 2007 03:33:10 -0400 Received: from mail.gmx.net ([213.165.64.20]:55986 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751082AbXHUHdI (ORCPT ); Tue, 21 Aug 2007 03:33:08 -0400 X-Authenticated: #14349625 X-Provags-ID: V01U2FsdGVkX186XyFGOVw6U1h1VKx100aDOp+ek2UXNhGuRGihKe re4mByG7OKGVaV Subject: Re: CFS review From: Mike Galbraith To: Roman Zippel Cc: Ingo Molnar , Willy Tarreau , Michael Chang , Linus Torvalds , Andi Kleen , Andrew Morton , linux-kernel@vger.kernel.org In-Reply-To: References: <20070801190556.GA1199@elte.hu> <20070810054948.GA5908@elte.hu> <20070810194705.GH6002@1wt.eu> <20070810213630.GA13910@elte.hu> <20070811003052.GA18812@elte.hu> Content-Type: text/plain Date: Tue, 21 Aug 2007 09:33:03 +0200 Message-Id: <1187681583.6183.25.camel@Homer.simpson.net> Mime-Version: 1.0 X-Mailer: Evolution 2.8.2 Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2007-08-21 at 00:19 +0200, Roman Zippel wrote: > Hi, > > On Sat, 11 Aug 2007, Ingo Molnar wrote: > > > the only relevant thing that comes to mind at the moment is that last > > week Peter noticed a buggy aspect of sleeper bonuses (in that we do not > > rate-limit their output, hence we 'waste' them instead of redistributing > > them), and i've got the small patch below in my queue to fix that - > > could you give it a try? > > It doesn't make much of a difference. I thought this was history. With your config, I was finally able to reproduce the anomaly (only with your proggy though), and Ingo's patch does indeed fix it here. Freshly reproduced anomaly and patch verification, running 2.6.23-rc3 with your config, both with and without Ingo's patch reverted: 6561 root 20 0 1696 492 404 S 32.0 0.0 0:30.83 0 lt 6562 root 20 0 1696 336 248 R 32.0 0.0 0:30.79 0 lt 6563 root 20 0 1696 336 248 R 32.0 0.0 0:30.80 0 lt 6564 root 20 0 2888 1236 1028 R 4.6 0.1 0:05.26 0 sh 6507 root 20 0 2888 1236 1028 R 25.8 0.1 0:30.75 0 sh 6504 root 20 0 1696 492 404 R 24.4 0.0 0:29.26 0 lt 6505 root 20 0 1696 336 248 R 24.4 0.0 0:29.26 0 lt 6506 root 20 0 1696 336 248 R 24.4 0.0 0:29.25 0 lt -Mike