Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758037AbXIZKsl (ORCPT ); Wed, 26 Sep 2007 06:48:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755264AbXIZKsd (ORCPT ); Wed, 26 Sep 2007 06:48:33 -0400 Received: from sorrow.cyrius.com ([65.19.161.204]:1876 "EHLO sorrow.cyrius.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753829AbXIZKsc (ORCPT ); Wed, 26 Sep 2007 06:48:32 -0400 Date: Wed, 26 Sep 2007 12:48:14 +0200 From: Martin Michlmayr To: Mike Galbraith Cc: Ingo Molnar , Srivatsa Vaddagiri , linux-kernel@vger.kernel.org Subject: Re: Network slowdown due to CFS Message-ID: <20070926104814.GM3337@deprecation.cyrius.com> References: <20070926085202.GE3337@deprecation.cyrius.com> <1190802208.7318.5.camel@Homer.simpson.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1190802208.7318.5.camel@Homer.simpson.net> User-Agent: Mutt/1.5.16 (2007-06-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 694 Lines: 17 * Mike Galbraith [2007-09-26 12:23]: > I noticed on the iperf website a patch which contains sched_yield(). > http://dast.nlanr.net/Projects/Iperf2.0/patch-iperf-linux-2.6.21.txt > > Do you have that patch applied by any chance? If so, it might be a > worth while to try it without it. Yes, this patch was applied. When I revert it, I get the same (high) performance with both kernels. -- Martin Michlmayr http://www.cyrius.com/ - 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/