From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262137AbVAYVGV (ORCPT ); Tue, 25 Jan 2005 16:06:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262132AbVAYVDs (ORCPT ); Tue, 25 Jan 2005 16:03:48 -0500 Received: from mustang.oldcity.dca.net ([216.158.38.3]:19606 "HELO mustang.oldcity.dca.net") by vger.kernel.org with SMTP id S262117AbVAYU7u (ORCPT ); Tue, 25 Jan 2005 15:59:50 -0500 Subject: Re: ATI drivers working under realtime-preempt linux From: Lee Revell To: John Gilbert Cc: linux-kernel@vger.kernel.org In-Reply-To: <41F5CF5D.4060807@biomail.ucsd.edu> References: <41F5CF5D.4060807@biomail.ucsd.edu> Content-Type: text/plain Date: Tue, 25 Jan 2005 15:59:46 -0500 Message-Id: <1106686786.10845.58.camel@krustophenia.net> Mime-Version: 1.0 X-Mailer: Evolution 2.0.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2005-01-24 at 20:47 -0800, John Gilbert wrote: > Xv isn't supported. DRI isn't supported. > ATI (and NVIDIA) should be all over the hard-realtime kernel, as this > has the potential of making video and games frame accurate (never > missing frames, no page tears). > The documentation from Linux user's web pages are better than ATI's. > > Making this work should have been someone at ATI's job, not mine. I'm > working blind here. Be patient, this stuff is very new and vendors are rightfully conservative. They are probably just waiting for the development to settle down a bit before committing resources to supporting the RT kernel. Once some distros start to offer the RT kernel as an option I would expect a lot of interest from hardware vendors as it really allows the hardware pushed to its limits. For example pro audio interfaces are heavily marketed based on the lowest achievable latency, this will let them put better numbers on the box, and will probably improve Linux support a lot, because the marketing will have to be "FooAudio5000, now featuring 0.6 ms*** usable latency (***Linux RT kernel required, 2.6 ms under Windows/MacOS)" :-). Lee