Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261596AbUJaMiR (ORCPT ); Sun, 31 Oct 2004 07:38:17 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261605AbUJaMiQ (ORCPT ); Sun, 31 Oct 2004 07:38:16 -0500 Received: from mx2.elte.hu ([157.181.151.9]:47809 "EHLO mx2.elte.hu") by vger.kernel.org with ESMTP id S261596AbUJaMh6 (ORCPT ); Sun, 31 Oct 2004 07:37:58 -0500 Date: Sun, 31 Oct 2004 13:39:03 +0100 From: Ingo Molnar To: Lee Revell Cc: Florian Schmidt , Paul Davis , Thomas Gleixner , LKML , mark_h_johnson@raytheon.com, Bill Huey , Adam Heath , Michal Schmidt , Fernando Pablo Lopez-Lezcano , Karsten Wiese , jackit-devel , Rui Nuno Capela , axboe@suse.de Subject: Re: [Fwd: Re: [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0.4] Message-ID: <20041031123903.GA21621@elte.hu> References: <20041030214738.1918ea1d@mango.fruits.de> <1099165925.1972.22.camel@krustophenia.net> <20041030221548.5e82fad5@mango.fruits.de> <1099167996.1434.4.camel@krustophenia.net> <20041030231358.6f1eeeac@mango.fruits.de> <1099189225.1754.1.camel@krustophenia.net> <20041031110039.4575e49c@mango.fruits.de> <1099224598.1459.28.camel@krustophenia.net> <20041031121937.GA20036@elte.hu> <1099226110.1459.42.camel@krustophenia.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1099226110.1459.42.camel@krustophenia.net> 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=-4.9, required 5.9, autolearn=not spam, BAYES_00 -4.90 X-ELTE-SpamLevel: X-ELTE-SpamScore: -4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 839 Lines: 20 * Lee Revell wrote: > Hmm, maybe the timer interrupt should be 99 and the rest say 50. > Wouldn't it be bad if you had a fully loaded jackd (DSP load in JACK > is the proportion of the process cycle to the period time; in a fully > loaded jack setup the clients are using all the available time) and > jackd + the soundcard IRQ's RT priorities are higher than the timer > interrupt? Seems like you could starve the timer interrupt > indefinitely. i misspoke when i said timer interrupt - that one is the lone non-threaded IRQ so its priority is 100 in essence. Ingo - 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/