From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261375AbULAK5r (ORCPT ); Wed, 1 Dec 2004 05:57:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261373AbULAK5q (ORCPT ); Wed, 1 Dec 2004 05:57:46 -0500 Received: from 92.Red-80-34-142.pooles.rima-tde.net ([80.34.142.92]:42572 "EHLO samsagaz.sirte.net") by vger.kernel.org with ESMTP id S261367AbULAKz5 (ORCPT ); Wed, 1 Dec 2004 05:55:57 -0500 Message-ID: <41ADA35E.2010801@sombragris.com> Date: Wed, 01 Dec 2004 11:56:30 +0100 From: Miguel Angel Flores User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; es-ES; rv:1.7) Gecko/20040616 X-Accept-Language: es-es, es MIME-Version: 1.0 To: linux-kernel@vger.kernel.org CC: Joe Hsu Subject: Re: Kernel 2.6 with X (xorg) 4.4 (eats more CPU power) References: <1101896505.2161.45.camel@joe> In-Reply-To: <1101896505.2161.45.camel@joe> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-OriginalArrivalTime: 01 Dec 2004 10:56:30.0265 (UTC) FILETIME=[69C1B290:01C4D794] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Its just an idea but... ¿Have you configured your 2.6 kernel as a Preemptive kernel? Cheers, MaF Joe Hsu escribió: > In contrast, I've tried Kernel 2.4 with same X, same > program, and same machine. It consumes almost zero of CPU > resource( no matter it runs on a P4 1.xG or P4 3.0G and no > matter it runs on 4.4 or 4.2 X-server). > > Same phenomenon happened when I ran 4 mpeg4 playback > programs (each 320x240, 30 frames per second, no scaling). > It seems that these programs and X consume almost zero of > CPU power when the KERNEL HZ is 100. (I've > tried Robert Love's variable HZ patch to kernel 2.4 and > change HZ to 1000........Same phenomenon as 2.6)