Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261383AbUKVOgS (ORCPT ); Mon, 22 Nov 2004 09:36:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261435AbUKVOej (ORCPT ); Mon, 22 Nov 2004 09:34:39 -0500 Received: from mx2.elte.hu ([157.181.151.9]:40426 "EHLO mx2.elte.hu") by vger.kernel.org with ESMTP id S262107AbUKVORw (ORCPT ); Mon, 22 Nov 2004 09:17:52 -0500 Date: Mon, 22 Nov 2004 16:20:02 +0100 From: Ingo Molnar To: Rui Nuno Capela Cc: Florian Schmidt , linux-kernel@vger.kernel.org, Lee Revell , mark_h_johnson@raytheon.com, "K.R. Foley" , Bill Huey , Adam Heath , Thomas Gleixner , Michal Schmidt , Fernando Pablo Lopez-Lezcano , Karsten Wiese , Gunther Persoons , emann@mrv.com, Shane Shrybman , Amit Shah , Esben Nielsen Subject: Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm2-V0.7.30-2 Message-ID: <20041122152002.GA1321@elte.hu> References: <20041118123521.GA29091@elte.hu> <20041118164612.GA17040@elte.hu> <20041122005411.GA19363@elte.hu> <20041122020741.5d69f8bf@mango.fruits.de> <20041122094602.GA6817@elte.hu> <56781.195.245.190.93.1101119801.squirrel@195.245.190.93> <20041122132459.GB19577@elte.hu> <18923.195.245.190.93.1101128215.squirrel@195.245.190.93> <20041122150046.GA30371@elte.hu> <20041122151027.GA32546@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20041122151027.GA32546@elte.hu> 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: 927 Lines: 21 * Ingo Molnar wrote: > ah, i think i understand: fluidsynth has roughly the same CPU overhead > when it is 'silent' (it's generating small static noise in that case), > compared to when it's playing a MIDI file - so i should be able to see > the xruns if i just run jackd and 8 fluidsynth instances, and then > load the box - correct? another question: it seems the fluidsynth threads are running as non-RT threads - they are soft-synthesizing sound that jackd will mix and play. Now, can any delay of these fluidsynth threads (they are non-RT tasks and can get delayed indefinitely) cause an xrun in Jackd, or should it 'only' make the sound more choppy? 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/