From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268115AbUHTOie (ORCPT ); Fri, 20 Aug 2004 10:38:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268117AbUHTOie (ORCPT ); Fri, 20 Aug 2004 10:38:34 -0400 Received: from mail3.utc.com ([192.249.46.192]:56793 "EHLO mail3.utc.com") by vger.kernel.org with ESMTP id S268115AbUHTOia (ORCPT ); Fri, 20 Aug 2004 10:38:30 -0400 Message-ID: <41260CA6.2040306@cybsft.com> Date: Fri, 20 Aug 2004 09:37:26 -0500 From: "K.R. Foley" Organization: Cybersoft Solutions, Inc. User-Agent: Mozilla Thunderbird 0.7.3 (X11/20040803) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Ingo Molnar CC: linux-kernel@vger.kernel.org, Thomas Charbonnel , Florian Schmidt , Felipe Alfaro Solana , Lee Revell , Mark_H_Johnson@raytheon.com Subject: Re: [patch] voluntary-preempt-2.6.8.1-P5 References: <1092627691.867.150.camel@krustophenia.net> <20040816034618.GA13063@elte.hu> <1092628493.810.3.camel@krustophenia.net> <20040816040515.GA13665@elte.hu> <1092654819.5057.18.camel@localhost> <20040816113131.GA30527@elte.hu> <20040816120933.GA4211@elte.hu> <1092716644.876.1.camel@krustophenia.net> <20040817080512.GA1649@elte.hu> <20040819073247.GA1798@elte.hu> <20040820133031.GA13105@elte.hu> In-Reply-To: <20040820133031.GA13105@elte.hu> X-Enigmail-Version: 0.85.0.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Ingo Molnar wrote: > i've uploaded the -P5 patch: > > http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.8.1-P5 > I have been running the voluntary-preempt patches on one of my slower (450) servers at home. The question is would latency traces from such a slow system be useful to you in this testing. About the most load that gets generated on this system, usually, is compiling the kernel or a very large app. that I do development on. What I tend to do to load the system is just run the stress-kernel suite and sometimes Andrew's amlat program to provide RT scheduling pressure. If this would be useful, let me know as I have an interest in seeing latencies reduced as much as possible. I am building with the -P5 patch right now. If it would be more useful to try this on a faster system or to stess the system in a different manner, I could do that as well. kr