Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755962AbXI0K5O (ORCPT ); Thu, 27 Sep 2007 06:57:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754599AbXI0K47 (ORCPT ); Thu, 27 Sep 2007 06:56:59 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:55168 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754716AbXI0K46 (ORCPT ); Thu, 27 Sep 2007 06:56:58 -0400 Date: Thu, 27 Sep 2007 12:56:37 +0200 From: Ingo Molnar To: Martin Michlmayr Cc: Mike Galbraith , Srivatsa Vaddagiri , linux-kernel@vger.kernel.org, Stephen Hemminger Subject: Re: Network slowdown due to CFS Message-ID: <20070927105637.GA17936@elte.hu> References: <20070926085202.GE3337@deprecation.cyrius.com> <1190802208.7318.5.camel@Homer.simpson.net> <20070926104814.GM3337@deprecation.cyrius.com> <20070926112137.GA13876@elte.hu> <20070926112919.GN3337@deprecation.cyrius.com> <20070927094940.GA2894@elte.hu> <20070927105453.GE15346@deprecation.cyrius.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070927105453.GE15346@deprecation.cyrius.com> User-Agent: Mutt/1.5.14 (2007-02-12) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.1 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.1 required=5.9 tests=BAYES_05 autolearn=no SpamAssassin version=3.1.7-deb -1.1 BAYES_05 BODY: Bayesian spam probability is 1 to 5% [score: 0.0212] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 704 Lines: 19 * Martin Michlmayr wrote: > * Ingo Molnar [2007-09-27 11:49]: > > Martin, could you check the iperf patch below instead of the yield > > patch - does it solve the iperf performance problem equally well, > > and does CPU utilization drop for you too? > > Yes, it works and CPU goes down too. i'm curious by how much does CPU go down, and what's the output of iperf? (does it saturate full 100mbit network bandwidth) 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/