From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261978AbUL0VH6 (ORCPT ); Mon, 27 Dec 2004 16:07:58 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261984AbUL0VH6 (ORCPT ); Mon, 27 Dec 2004 16:07:58 -0500 Received: from smtp.Lynuxworks.com ([207.21.185.24]:48654 "EHLO smtp.lynuxworks.com") by vger.kernel.org with ESMTP id S261978AbUL0VHv (ORCPT ); Mon, 27 Dec 2004 16:07:51 -0500 Date: Mon, 27 Dec 2004 13:06:14 -0800 To: Steven Rostedt Cc: Esben Nielsen , Ingo Molnar , Rui Nuno Capela , "K.R. Foley" , Fernando Lopez-Lezcano , Mark Johnson , Amit Shah , Karsten Wiese , Bill Huey , Adam Heath , emann@mrv.com, Gunther Persoons , LKML , Florian Schmidt , Lee Revell , Shane Shrybman , Thomas Gleixner , Michal Schmidt Subject: Re: Real-time rw-locks (Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.32-15) Message-ID: <20041227210614.GA11052@nietzsche.lynx.com> References: <1104165560.20042.108.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1104165560.20042.108.camel@localhost.localdomain> User-Agent: Mutt/1.5.6+20040907i From: Bill Huey (hui) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Dec 27, 2004 at 11:39:20AM -0500, Steven Rostedt wrote: > Actually, I've had some success with NVIDIA on all my kernels (except of Doesn't the NVidia driver use their own version of DRM/DRI ? If so, then did you tell it to use the Linux kernel versions of that driver ? > course the realtime ones). Unfortunately, there are the little crashes > here and there, but those usually happen with screen savers so I don't I was just having a discussion about this last night with a friend of mine and I'm going to pose this question to you and others. Is a real-time enabled kernel still relevant for high performance video even with GPUs being as fast as they are these days ? The context that I'm working with is that I was told (been out of gaming for a long time now) that GPus are so fast these days that shortage of frame rate isn't a problem any more. An RTOS would be able to deliver a data/instructions to the GPU under a much tighter time period and could delivery better, more consistent frame rates. Does this assertion still apply or not ? why ? (for either answer) bill