From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265087AbUEYVXj (ORCPT ); Tue, 25 May 2004 17:23:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265090AbUEYVXi (ORCPT ); Tue, 25 May 2004 17:23:38 -0400 Received: from amber.ccs.neu.edu ([129.10.116.51]:46995 "EHLO amber.ccs.neu.edu") by vger.kernel.org with ESMTP id S265087AbUEYVXh (ORCPT ); Tue, 25 May 2004 17:23:37 -0400 Subject: Re: Bad X-performance on 2.6.6 & 2.6.7-rc1 on x86-64 From: Stan Bubrouski To: Andi Kleen Cc: Malte Schr?der , "linux-kernel@vger.kernel.org" In-Reply-To: <20040525123636.GA13817@colin2.muc.de> References: <1ZqbC-5Gl-13@gated-at.bofh.it> <20040525122659.395783f4@highlander.Home.LAN> <20040525123636.GA13817@colin2.muc.de> Content-Type: text/plain Message-Id: <1085520021.1393.4168.camel@duergar> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 (1.4.6-2) Date: Tue, 25 May 2004 17:20:22 -0400 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2004-05-25 at 08:36, Andi Kleen wrote: > On Tue, May 25, 2004 at 12:26:59PM +0200, Malte Schr?der wrote: > > New information :) > > I didn't profile it yet but I think I found what caused the problem. > > It turned out that I have to disable alsa mmap-support in xine (mplayer worked w/o problems, it does not offer alsa mmap), so X is not involved at all. Do you still need a profile or is this a known thing? > > Ask the xine guys if it's known, I don't know much about xine. > If a user space change fixes it then I don't need any profiles. > I can confirm that xine with alsa-mmap option set does cuase strange behaviour, though I notice it mostly as audio and video getting out of sync when playing videos. I've noticed this behaviour since I started doing weekly xine CVS builds. I've never bothered reporting it however, I just turned off the option... which leads me to my question, what is the advantage of using alsa-mmap in an app if it is used correctly? And Malte, are you using emu10k1 driver per chance? -sb > -Andi