From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261867AbVGGTwI (ORCPT ); Thu, 7 Jul 2005 15:52:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262186AbVGGTtz (ORCPT ); Thu, 7 Jul 2005 15:49:55 -0400 Received: from mx1.elte.hu ([157.181.1.137]:31197 "EHLO mx1.elte.hu") by vger.kernel.org with ESMTP id S262228AbVGGTtb (ORCPT ); Thu, 7 Jul 2005 15:49:31 -0400 Date: Thu, 7 Jul 2005 21:49:14 +0200 From: Ingo Molnar To: Rui Nuno Capela Cc: linux-kernel@vger.kernel.org Subject: Re: realtime-preempt-2.6.12-final-V0.7.51-11 glitches Message-ID: <20050707194914.GA1161@elte.hu> References: <1119299227.20873.113.camel@cmn37.stanford.edu> <20050621105954.GA18765@elte.hu> <1119370868.26957.9.camel@cmn37.stanford.edu> <20050621164622.GA30225@elte.hu> <1119375988.28018.44.camel@cmn37.stanford.edu> <1120256404.22902.46.camel@cmn37.stanford.edu> <20050703133738.GB14260@elte.hu> <1120428465.21398.2.camel@cmn37.stanford.edu> <24833.195.245.190.94.1120761991.squirrel@www.rncbc.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <24833.195.245.190.94.1120761991.squirrel@www.rncbc.org> User-Agent: Mutt/1.4.2.1i 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 * Rui Nuno Capela wrote: > Hi all, > > These are one of my latest consolidated results while using (my) > jack_test4.2 suite, against a couple of 2.6.12 kernels patched for > PREEMPT_RT, on my P4@2.5GHz/UP laptop. > > See anything funny? hm, you dont seem to have PREEMPT_RT enabled in your .config - it's set to PREEMPT_DESKTOP (config-2.6.12-RT-V0.7.51-11.0). OTOH, your 49-01 config has PREEMPT_RT enabled. So it's not an apples to apples comparison. Just to make sure, could you check 51-11 with PREEMPT_RT enabled too? i have just done a jack_test4.1 run, and indeed larger latencies seem to have crept in. (But i forgot to chrt the sound IRQ above the network IRQ, so i'll retest.) Ingo