Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261670AbUK2LGl (ORCPT ); Mon, 29 Nov 2004 06:06:41 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261660AbUK2LGl (ORCPT ); Mon, 29 Nov 2004 06:06:41 -0500 Received: from mx1.elte.hu ([157.181.1.137]:52438 "EHLO mx1.elte.hu") by vger.kernel.org with ESMTP id S261666AbUK2LFo (ORCPT ); Mon, 29 Nov 2004 06:05:44 -0500 Date: Mon, 29 Nov 2004 12:05:07 +0100 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 , Gunther Persoons , emann@mrv.com, Shane Shrybman , Amit Shah , Esben Nielsen Subject: Re: Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.31-7 Message-ID: <20041129110507.GA10123@elte.hu> References: <36536.195.245.190.93.1101471176.squirrel@195.245.190.93> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <36536.195.245.190.93.1101471176.squirrel@195.245.190.93> 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, BAYES_00 -4.90, UPPERCASE_50_75 0.00 X-ELTE-SpamLevel: X-ELTE-SpamScore: -4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1781 Lines: 61 * Rui Nuno Capela wrote: > config-2.6.10-rc2-mm3-RT-V0.7.31-7.gz > - kernel configuration as of my laptop, taken from /proc/config.gz Here are some .config suggestion to reduce tracing costs. Here's the relevant portion of your .config: CONFIG_DEBUG_KERNEL=y CONFIG_MAGIC_SYSRQ=y # CONFIG_SCHEDSTATS is not set # CONFIG_DEBUG_SLAB is not set CONFIG_DEBUG_PREEMPT=y CONFIG_WAKEUP_TIMING=y CONFIG_PREEMPT_TRACE=y CONFIG_CRITICAL_PREEMPT_TIMING=y CONFIG_CRITICAL_IRQSOFF_TIMING=y CONFIG_CRITICAL_TIMING=y CONFIG_LATENCY_TIMING=y CONFIG_LATENCY_TRACE=y CONFIG_MCOUNT=y CONFIG_RT_DEADLOCK_DETECT=y # CONFIG_DEBUG_KOBJECT is not set CONFIG_DEBUG_BUGVERBOSE=y # CONFIG_DEBUG_INFO is not set CONFIG_FRAME_POINTER=y CONFIG_EARLY_PRINTK=y CONFIG_DEBUG_STACKOVERFLOW=y i'd suggest to use the following one: CONFIG_DEBUG_KERNEL=y CONFIG_MAGIC_SYSRQ=y # CONFIG_SCHEDSTATS is not set # CONFIG_DEBUG_SLAB is not set # CONFIG_DEBUG_PREEMPT is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set CONFIG_WAKEUP_TIMING=y # CONFIG_CRITICAL_PREEMPT_TIMING is not set # CONFIG_CRITICAL_IRQSOFF_TIMING is not set CONFIG_LATENCY_TIMING=y CONFIG_LATENCY_TRACE=y CONFIG_MCOUNT=y # CONFIG_RT_DEADLOCK_DETECT is not set # CONFIG_DEBUG_KOBJECT is not set CONFIG_DEBUG_BUGVERBOSE=y # CONFIG_DEBUG_INFO is not set CONFIG_FRAME_POINTER=y CONFIG_EARLY_PRINTK=y # CONFIG_DEBUG_STACKOVERFLOW is not set especially PREEMPT_TIMING, IRQSOFF_TIMING and RT_DEADLOCK_DETECT are quite expensive options. 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/