From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267480AbUIBF6P (ORCPT ); Thu, 2 Sep 2004 01:58:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267558AbUIBF6P (ORCPT ); Thu, 2 Sep 2004 01:58:15 -0400 Received: from mx2.elte.hu ([157.181.151.9]:28130 "EHLO mx2.elte.hu") by vger.kernel.org with ESMTP id S267480AbUIBF6L (ORCPT ); Thu, 2 Sep 2004 01:58:11 -0400 Date: Thu, 2 Sep 2004 07:40:08 +0200 From: Ingo Molnar To: "K.R. Foley" Cc: linux-kernel@vger.kernel.org, Mark_H_Johnson@raytheon.com, Lee Revell Subject: Re: [patch] voluntary-preempt-2.6.9-rc1-bk4-Q7 Message-ID: <20040902054008.GA12755@elte.hu> References: <20040828211334.GA32009@elte.hu> <1093727817.860.1.camel@krustophenia.net> <1093737080.1385.2.camel@krustophenia.net> <1093746912.1312.4.camel@krustophenia.net> <20040829054339.GA16673@elte.hu> <20040830090608.GA25443@elte.hu> <20040901082958.GA22920@elte.hu> <20040901135122.GA18708@elte.hu> <41367E5D.3040605@cybsft.com> <20040902053719.GA12684@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040902053719.GA12684@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 * Ingo Molnar wrote: > > 00000001 0.000ms (+0.000ms): n_tty_receive_buf (pty_write) > > 00010001 3.992ms (+3.992ms): do_IRQ (n_tty_receive_buf) > > the overhead is always relative to the previous entry [...] i've changed the /proc/latency_trace output in my tree to print the latency of this entry relative to the next entry, not the previous entry. This should be more intuitive than using the previous entry. Ingo