Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264386AbUJTOmp (ORCPT ); Wed, 20 Oct 2004 10:42:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267866AbUJTOhr (ORCPT ); Wed, 20 Oct 2004 10:37:47 -0400 Received: from pop.gmx.net ([213.165.64.20]:6575 "HELO mail.gmx.net") by vger.kernel.org with SMTP id S266683AbUJTOhS (ORCPT ); Wed, 20 Oct 2004 10:37:18 -0400 X-Authenticated: #4399952 Date: Wed, 20 Oct 2004 16:53:26 +0200 From: Florian Schmidt To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Lee Revell , Rui Nuno Capela , Mark_H_Johnson@Raytheon.com, "K.R. Foley" , Bill Huey , Adam Heath , Thomas Gleixner , Michal Schmidt , Fernando Pablo Lopez-Lezcano Subject: Re: [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U8 Message-ID: <20041020165326.5016fc5e@mango.fruits.de> In-Reply-To: <20041020141822.GA16965@elte.hu> References: <20041015102633.GA20132@elte.hu> <20041016153344.GA16766@elte.hu> <20041018145008.GA25707@elte.hu> <20041019124605.GA28896@elte.hu> <20041019180059.GA23113@elte.hu> <20041020094508.GA29080@elte.hu> <20041020145019.176826cb@mango.fruits.de> <20041020125500.GA8693@elte.hu> <20041020152507.3c167ca8@mango.fruits.de> <20041020162428.7c4c5f53@mango.fruits.de> <20041020141822.GA16965@elte.hu> X-Mailer: Sylpheed-Claws 0.9.12b (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 Content-Length: 955 Lines: 25 On Wed, 20 Oct 2004 16:18:22 +0200 Ingo Molnar wrote: > note that the keyboard and USB interrupts are SCHED_OTHER by default, so > they could be delayed quite long depending on the workload. To avoid > that i'd suggest to: > > chrt --fifo --pid 30 `pidof 'IRQ 1'` > chrt --fifo --pid 30 `pidof 'IRQ 12'` > > (do this for every IRQ you have for input devices.) This puts them below > jackd's priority (which is FIFO 50 iirc) but above all SCHED_OTHER > tasks. The soundcard IRQ i guess you have chrt-ed already? > > or did you have them on SCHED_FIFO already? setting them to SCHED_FIFO even with a prio of 99 won't help. will try rebooting to see if it's reproducable flo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/