Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S269007AbUI2Ukt (ORCPT ); Wed, 29 Sep 2004 16:40:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S269048AbUI2Ui4 (ORCPT ); Wed, 29 Sep 2004 16:38:56 -0400 Received: from viper.oldcity.dca.net ([216.158.38.4]:56450 "HELO viper.oldcity.dca.net") by vger.kernel.org with SMTP id S269007AbUI2UeH (ORCPT ); Wed, 29 Sep 2004 16:34:07 -0400 Subject: Re: [patch] voluntary-preempt-2.6.9-rc2-mm4-S7 From: Lee Revell To: Ingo Molnar Cc: linux-kernel , "K.R. Foley" , Rui Nuno Capela In-Reply-To: <20040929203056.GA7707@elte.hu> References: <20040919122618.GA24982@elte.hu> <414F8CFB.3030901@cybsft.com> <20040921071854.GA7604@elte.hu> <20040921074426.GA10477@elte.hu> <20040922103340.GA9683@elte.hu> <20040923122838.GA9252@elte.hu> <20040923211206.GA2366@elte.hu> <20040924074416.GA17924@elte.hu> <20040928000516.GA3096@elte.hu> <1096483257.1600.44.camel@krustophenia.net> <20040929203056.GA7707@elte.hu> Content-Type: text/plain Message-Id: <1096490043.15983.2.camel@krustophenia.net> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Wed, 29 Sep 2004 16:34:04 -0400 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 922 Lines: 25 On Wed, 2004-09-29 at 16:30, Ingo Molnar wrote: > > > > > http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.9-rc2-mm4-S7 > > > > Disabling latency tracing does not seem to work. To demonstrate: > is it the full modprobe latency trace, or just the header? Putting zero > into trace_enabled wont disable the critical-section-timing code - it > only disables the function tracer. Since /proc/latency_trace takes the > header portion from the latency-timing code that might change. To > disable both do something like: > > echo 100000000 > /proc/sys/kernel/preempt_max_latency > echo 0 > /proc/sys/kernel/trace_enabled OK, thanks for clarifying. Lee - 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/