Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262378AbUJ0Kdf (ORCPT ); Wed, 27 Oct 2004 06:33:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262381AbUJ0KaF (ORCPT ); Wed, 27 Oct 2004 06:30:05 -0400 Received: from pop.gmx.net ([213.165.64.20]:35971 "HELO mail.gmx.net") by vger.kernel.org with SMTP id S262389AbUJ0K2b (ORCPT ); Wed, 27 Oct 2004 06:28:31 -0400 X-Authenticated: #4399952 Date: Wed, 27 Oct 2004 12:45:24 +0200 From: Florian Schmidt To: Florian Schmidt Cc: Ingo Molnar , "K.R. Foley" , linux-kernel@vger.kernel.org, Lee Revell , Rui Nuno Capela , Mark_H_Johnson@Raytheon.com, Bill Huey , Adam Heath , Thomas Gleixner , Michal Schmidt , Fernando Pablo Lopez-Lezcano , Alexander Batyrshin Subject: Re: [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0 Message-ID: <20041027124524.693161b8@mango.fruits.de> In-Reply-To: <20041027123329.14570992@mango.fruits.de> References: <20041022175633.GA1864@elte.hu> <20041025104023.GA1960@elte.hu> <417D4B5E.4010509@cybsft.com> <20041025203807.GB27865@elte.hu> <417E2CB7.4090608@cybsft.com> <20041027002455.GC31852@elte.hu> <417F16BB.3030300@cybsft.com> <20041027082831.GA15192@elte.hu> <20041027084401.GA15989@elte.hu> <20041027085221.GA16742@elte.hu> <20041027090620.GA17621@elte.hu> <20041027123329.14570992@mango.fruits.de> X-Mailer: Sylpheed-Claws 0.9.12b (GTK+ 1.2.10; i386-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1334 Lines: 36 On Wed, 27 Oct 2004 12:33:29 +0200 Florian Schmidt wrote: > V0.3.2 builds and boots fine here. It seems to run ok, too. Uptime 25 > minutes and no BUG's [yay! 25 minutes already! ;)]. Well anyways, > preempt_max_thresh is at 38us after running several concurrent find's plus > jackd. > > There's a problem though with jackd performance. Read on below if it is of > any interest at this point. [snip] anyways, i still see the mysterious pauses which do not show up in the preempt_max_thresh. ah, and btw: what does the /proc/sys/kernel/kernel_preemption tunable do with PREEMPT_REALTIME enabled? mango:~# cat /proc/sys/kernel/kernel_preemption 1 [all the other VP tunables are not available anymore] mango:~# cat /proc/sys/kernel/voluntary_preemption cat: /proc/sys/kernel/voluntary_preemption: No such file or directory mango:~# cat /proc/sys/kernel/hardirq_preemption cat: /proc/sys/kernel/hardirq_preemption: No such file or directory mango:~# cat /proc/sys/kernel/softirq_preemption cat: /proc/sys/kernel/softirq_preemption: No such file or directory flo - 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/