From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261589AbULITk5 (ORCPT ); Thu, 9 Dec 2004 14:40:57 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261594AbULITk5 (ORCPT ); Thu, 9 Dec 2004 14:40:57 -0500 Received: from mx1.elte.hu ([157.181.1.137]:21992 "EHLO mx1.elte.hu") by vger.kernel.org with ESMTP id S261589AbULITkw (ORCPT ); Thu, 9 Dec 2004 14:40:52 -0500 Date: Thu, 9 Dec 2004 20:40:38 +0100 From: Ingo Molnar To: Mark_H_Johnson@raytheon.com Cc: Amit Shah , Karsten Wiese , Bill Huey , Adam Heath , emann@mrv.com, Gunther Persoons , "K.R. Foley" , linux-kernel@vger.kernel.org, Florian Schmidt , Fernando Pablo Lopez-Lezcano , Lee Revell , Rui Nuno Capela , Shane Shrybman , Esben Nielsen , Thomas Gleixner , Michal Schmidt Subject: Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.32-6 Message-ID: <20041209194038.GB18840@elte.hu> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i X-ELTE-SpamVersion: MailScanner 4.31.6-itk1 (ELTE 1.2) SpamAssassin 2.63 ClamAV 0.73 X-ELTE-VirusStatus: clean X-ELTE-SpamCheck: no X-ELTE-SpamCheck-Details: score=-2.201, required 5.9, BAYES_00 -4.90, SORTED_RECIPS 2.70 X-ELTE-SpamLevel: X-ELTE-SpamScore: -2 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Mark_H_Johnson@raytheon.com wrote: > >> Yes, but then I have ALL the IRQ's at the highest priority (plus a > >> couple other /0 and /1 tasks). [...] > > > > that is the fundamental problem i believe: your 'CPU loop' gets > > delayed by them. > > They should not get delayed by them any more than in the > PREEMPT_DESKTOP configuration [...] just to make sure we are talking about the same thing. Do you mean PREEMPT_DESKTOP with IRQ threading disabled? Ingo