Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756381AbXH1Hnw (ORCPT ); Tue, 28 Aug 2007 03:43:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751998AbXH1Hnn (ORCPT ); Tue, 28 Aug 2007 03:43:43 -0400 Received: from smtp28.orange.fr ([80.12.242.100]:7927 "EHLO smtp28.orange.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751722AbXH1Hnm (ORCPT ); Tue, 28 Aug 2007 03:43:42 -0400 X-ME-UUID: 20070828074341182.2C9FC8000055@mwinf2807.orange.fr Subject: Re: CFS review From: Xavier Bestel To: Al Boldi Cc: Ingo Molnar , Peter Zijlstra , Mike Galbraith , Andrew Morton , Linus Torvalds , linux-kernel@vger.kernel.org In-Reply-To: <200708280737.53439.a1426z@gawab.com> References: <200708111344.42934.a1426z@gawab.com> <200708271746.47685.a1426z@gawab.com> <20070827204116.GA12495@elte.hu> <200708280737.53439.a1426z@gawab.com> Content-Type: text/plain Date: Tue, 28 Aug 2007 09:43:35 +0200 Message-Id: <1188287015.1131.232.camel@frg-rhel40-em64t-04> Mime-Version: 1.0 X-Mailer: Evolution 2.0.2 (2.0.2-27) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 704 Lines: 23 On Tue, 2007-08-28 at 07:37 +0300, Al Boldi wrote: > start gears like this: > > # gears & gears & gears & > > Then lay them out side by side to see the periodic stallings for > ~10sec. Are you sure they are stalled ? What you may have is simple gears running at a multiple of your screen refresh rate, so they only appear stalled. Plus, as said Linus, you're not really testing the kernel scheduler. gears is really bad benchmark, it should die. Xav - 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/