Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261152AbUJ1N5e (ORCPT ); Thu, 28 Oct 2004 09:57:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261153AbUJ1N5V (ORCPT ); Thu, 28 Oct 2004 09:57:21 -0400 Received: from mx1.elte.hu ([157.181.1.137]:21654 "EHLO mx1.elte.hu") by vger.kernel.org with ESMTP id S261211AbUJ1Nz5 (ORCPT ); Thu, 28 Oct 2004 09:55:57 -0400 Date: Thu, 28 Oct 2004 15:57:06 +0200 From: Ingo Molnar To: Rui Nuno Capela Cc: linux-kernel@vger.kernel.org, Lee Revell , mark_h_johnson@raytheon.com, "K.R. Foley" , Bill Huey , Adam Heath , Florian Schmidt , Thomas Gleixner , Michal Schmidt , Fernando Pablo Lopez-Lezcano , Karsten Wiese Subject: [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0.5.2 Message-ID: <20041028135706.GA25849@elte.hu> References: <20041027135309.GA8090@elte.hu> <12917.195.245.190.94.1098890763.squirrel@195.245.190.94> <20041027205126.GA25091@elte.hu> <20041027211957.GA28571@elte.hu> <33083.192.168.1.5.1098919913.squirrel@192.168.1.5> <20041028063630.GD9781@elte.hu> <20668.195.245.190.93.1098952275.squirrel@195.245.190.93> <20041028085656.GA21535@elte.hu> <26253.195.245.190.93.1098955051.squirrel@195.245.190.93> <20041028093215.GA27694@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20041028093215.GA27694@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: 857 Lines: 27 * Ingo Molnar wrote: > (right now it's not possible to do wakeup-timing without > LATENCY_TRACE, i'll fix that.) i've fixed this in -RT-V0.5.2. Also, the trace_enabled=4 method is deprecated now and the new mechanism is to use: /proc/sys/kernel/preempt_wakeup_timing this flag is default-enabled. So starting at -RT-V0.5.2 to activate wakeup timing it's enough to enable PREEMPT_TIMING and reset the max after bootup: echo 0 > /proc/sys/kernel/preempt_max_latency this will switch back to critical-section timing/tracing: echo 0 > /proc/sys/kernel/preempt_wakeup_timing 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/