From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1423015AbXDTAAI (ORCPT ); Thu, 19 Apr 2007 20:00:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1423014AbXDTAAH (ORCPT ); Thu, 19 Apr 2007 20:00:07 -0400 Received: from gw01.mail.saunalahti.fi ([195.197.172.115]:35723 "EHLO gw01.mail.saunalahti.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161303AbXDTAAE (ORCPT >); Thu, 19 Apr 2007 20:00:04 -0400 X-Greylist: delayed 432 seconds by postgrey-1.27 at vger.kernel.org; Thu, 19 Apr 2007 20:00:04 EDT From: Jan Knutar To: linux-kernel@vger.kernel.org Subject: Re: [Announce] [patch] Modular Scheduler Core and Completely Fair Scheduler [CFS] Date: Fri, 20 Apr 2007 02:52:38 +0300 User-Agent: KMail/1.6.2 Cc: Ingo Molnar , Willy Tarreau , Nick Piggin , Linus Torvalds , Andrew Morton , Con Kolivas , Mike Galbraith , Arjan van de Ven , Thomas Gleixner References: <20070413202100.GA9957@elte.hu> <20070419125438.GA27584@1wt.eu> <20070419151803.GB30959@elte.hu> In-Reply-To: <20070419151803.GB30959@elte.hu> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Message-Id: <200704200252.39459.jk-lkml@sci.fi> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thursday 19 April 2007 18:18, Ingo Molnar wrote: > * Willy Tarreau wrote: > > You can certainly script it with -geometry. But it is the wrong > > application for this matter, because you benchmark X more than > > glxgears itself. What would be better is something like a line > > rotating 360 degrees and doing some short stuff between each > > degree, so that X is not much sollicitated, but the CPU would be > > spent more on the processes themselves. > > at least on my setup glxgears goes via DRI/DRM so there's no X > scheduling inbetween at all, and the visual appearance of glxgears is > a direct function of its scheduling. How much of the subjective interactiveness-feel of the desktop is at the mercy of the X server's scheduling and not the cpu scheduler? I've noticed that video playback is significantly smoother and resistant to other load, when using MPlayer's opengl output, especially if "heavy" programs are running at the same time. Especially firefox and ksysguard seem to have found a way to cause video through Xv to look annoyingly jittery.