From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267353AbUGVXHa (ORCPT ); Thu, 22 Jul 2004 19:07:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267354AbUGVXH3 (ORCPT ); Thu, 22 Jul 2004 19:07:29 -0400 Received: from pop.gmx.de ([213.165.64.20]:20907 "HELO mail.gmx.net") by vger.kernel.org with SMTP id S267353AbUGVXH2 (ORCPT ); Thu, 22 Jul 2004 19:07:28 -0400 X-Authenticated: #4399952 Date: Fri, 23 Jul 2004 01:16:05 +0200 From: Florian Schmidt To: Andrew McGregor Cc: "The Linux Audio Developers' Mailing List" , rlrevell@joe-job.com, Andrew Morton , linux-kernel Subject: Re: [linux-audio-dev] Re: [announce] [patch] Voluntary Kernel Preemption Patch Message-Id: <20040723011605.62995d78@mango.fruits.de> In-Reply-To: <848056B606F178CF9FBDDAC2@[192.168.1.247]> References: <20040712163141.31ef1ad6.akpm@osdl.org> <1090306769.22521.32.camel@mindpipe> <20040720071136.GA28696@elte.hu> <200407202011.20558.musical_snake@gmx.de> <1090353405.28175.21.camel@mindpipe> <40FDAF86.10104@gardena.net> <1090369957.841.14.camel@mindpipe> <20040721125352.7e8e95a1@mango.fruits.de> <848056B606F178CF9FBDDAC2@[192.168.1.247]> X-Mailer: Sylpheed-Claws 0.9.12 (GTK+ 1.2.10; i386-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 23 Jul 2004 10:25:07 +1200 Andrew McGregor wrote: > It is a PCI bus issue. You simply don't have enough PCI bus cycles > available to do what you want to do. The resource you're running out of is > bus bandwidth, and there's nothing to be done about it, other than remove > the PCI gfx card from the system. > > If you get another dualhead AGP graphics card (anything will do), the > problem should go away. We have a developer who does lowlatency > multichannel sound stuff on a machine with a Matrox G450 dualhead card no > problem. I expect my own system (Radeon 9800 Pro and M-Audio 1010LT audio) > would be fine dualhead too, although I only run it singlehead at the > moment. The 1010LT is 10 channels in and out of 24-bit 96kHz audio and > works great down to 1.5ms buffers, so it is no small bus load itself. Hi, thanks for the advice. I have tried some more pci cards and a very slow Virge 64 or something actually reduced the problem. Not completely though. I think i'll get me one of those G450 dual head cards.. Florian Schmidt -- Palimm Palimm! http://affenbande.org/~tapas/