Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965818AbWK1UQo (ORCPT ); Tue, 28 Nov 2006 15:16:44 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S936098AbWK1UQo (ORCPT ); Tue, 28 Nov 2006 15:16:44 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:16289 "EHLO mx2.mail.elte.hu") by vger.kernel.org with ESMTP id S936095AbWK1UQn (ORCPT ); Tue, 28 Nov 2006 15:16:43 -0500 Date: Tue, 28 Nov 2006 21:14:44 +0100 From: Ingo Molnar To: Lee Revell Cc: Fernando Lopez-Lezcano , "Linux-Kernel," Subject: Re: 2.6.19-rc6-rt8: alsa xruns Message-ID: <20061128201444.GB26934@elte.hu> References: <1164743931.15887.34.camel@cmn3.stanford.edu> <1164744757.1701.58.camel@mindpipe> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1164744757.1701.58.camel@mindpipe> User-Agent: Mutt/1.4.2.2i X-ELTE-SpamScore: -4.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-4.5 required=5.9 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=no SpamAssassin version=3.0.3 -3.3 ALL_TRUSTED Did not pass through any untrusted hosts -2.6 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] 1.4 AWL AWL: From: address is in the auto white-list X-ELTE-VirusStatus: clean Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 938 Lines: 23 * Lee Revell wrote: > On Tue, 2006-11-28 at 11:58 -0800, Fernando Lopez-Lezcano wrote: > > Hi, I'm trying out the latest -rt patch and getting alsa xruns when > > using jackd and jack clients. This is a sample from the output of > > qjackctl / jackd (jack 0.102.25, qjackctl 0.2.21): > > Any improvement if you disable high res timers? > > Also, the latency tracer does not work on dual core AMD machines due > to the TSC drift. Might as well disable it. i fixed this in -rt8: the latency tracer now uses the time of day clocksource - pmtimer in this case. (that means function tracing is slower than with the TSC, but latency figures are more reliable.) 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/