From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030690AbXDULH5 (ORCPT ); Sat, 21 Apr 2007 07:07:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030694AbXDULH5 (ORCPT ); Sat, 21 Apr 2007 07:07:57 -0400 Received: from 1wt.eu ([62.212.114.60]:2062 "EHLO 1wt.eu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030690AbXDULH4 (ORCPT ); Sat, 21 Apr 2007 07:07:56 -0400 Date: Sat, 21 Apr 2007 13:07:48 +0200 From: Willy Tarreau To: Ingo Molnar Cc: linux-kernel@vger.kernel.org Subject: Re: [Announce] [patch] Modular Scheduler Core and Completely Fair Scheduler [CFS] Message-ID: <20070421110748.GA6383@1wt.eu> References: <20070414080833.GL943@1wt.eu> <20070414083625.GM943@1wt.eu> <20070414105338.GB19454@elte.hu> <20070414130101.GA2538@1wt.eu> <20070419090144.GA17100@elte.hu> <20070419125438.GA27584@1wt.eu> <20070419151803.GB30959@elte.hu> <20070419184534.GA29096@1wt.eu> <20070421103129.GA12621@elte.hu> <20070421104522.GA17856@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070421104522.GA17856@elte.hu> User-Agent: Mutt/1.5.11 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi Ingo, I'm replying to your 3 mails at once. On Sat, Apr 21, 2007 at 12:45:22PM +0200, Ingo Molnar wrote: > > * Ingo Molnar wrote: > > > > It could become a useful scheduler benchmark ! > > > > i just tried ocbench-0.3, and it is indeed very nice! So as you've noticed just one minute after I put it there, I've updated the tool and renamed it ocbench. For others, it's here : http://linux.1wt.eu/sched/ Useful news are proper positionning, automatic forking, and more visible progress with smaller windows, which eat less of X ressources. Now about your idea of making it report information on stdout, I don't know if it would be that useful. There are many other command line tools for this purpose. This one's goal is to eat CPU with a visual control of CPU distribution only. Concerning your idea of using a signal to resync every process, I agree with you. Running at 8x8 shows a noticeable offset. I've just uploaded v0.4 which supports your idea of sending USR1. > another thing i noticed: when using a -y larger then 1, then the window > title (at least on Metacity) overlaps and thus the ocbench tasks have > different X overhead and get scheduled a bit assymetrically as well. Is > there any way to start them up title-less perhaps? It has annoyed me a bit too, but I'm no X developer at all, so I don't know at all if it's possible nor how to do this. I know that my window manager even adds title bars to xeyes, so I'm not sure we can do this. Right now, I've added a "-B " argument so that you can skip the size of your title bar. It's dirty but it's not my main job :-) Thanks for your feedback Willy