From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262318AbVGGUBe (ORCPT ); Thu, 7 Jul 2005 16:01:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262305AbVGGUBS (ORCPT ); Thu, 7 Jul 2005 16:01:18 -0400 Received: from mx2.elte.hu ([157.181.151.9]:20662 "EHLO mx2.elte.hu") by vger.kernel.org with ESMTP id S261838AbVGGT7O (ORCPT ); Thu, 7 Jul 2005 15:59:14 -0400 Date: Thu, 7 Jul 2005 21:59:10 +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: <20050707195910.GA2014@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> <20050707194914.GA1161@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050707194914.GA1161@elte.hu> 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 * Ingo Molnar wrote: > 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.) with the sound irq chrt-ed to prio 90 the latencies look pretty good: ************* SUMMARY RESULT **************** Total seconds ran . . . . . . : 300 Number of clients . . . . . . : 14 Ports per client . . . . . . : 4 Frames per buffer . . . . . . : 64 Number of runs . . . . . . . :( 1) ********************************************* Timeout Count . . . . . . . . :( 0) XRUN Count . . . . . . . . . : 0 Delay Count (>spare time) . . : 0 Delay Count (>1000 usecs) . . : 0 Delay Maximum . . . . . . . . : 18 usecs Cycle Maximum . . . . . . . . : 637 usecs Average DSP Load. . . . . . . : 36.3 % Average CPU System Load . . . : 18.8 % Average CPU User Load . . . . : 29.3 % Average CPU Nice Load . . . . : 0.0 % Average CPU I/O Wait Load . . : 0.0 % Average CPU IRQ Load . . . . : 0.0 % Average CPU Soft-IRQ Load . . : 0.0 % Average Interrupt Rate . . . : 1680.1 /sec Average Context-Switch Rate . : 14361.3 /sec ********************************************* Delta Maximum . . . . . . . . : 0.00000 ********************************************* and this was with LATENCY_TRACE turned on. Ingo