From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933232AbYDQKIM (ORCPT ); Thu, 17 Apr 2008 06:08:12 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S934173AbYDQJzR (ORCPT ); Thu, 17 Apr 2008 05:55:17 -0400 Received: from fgwmail6.fujitsu.co.jp ([192.51.44.36]:45406 "EHLO fgwmail6.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933380AbYDQJzO (ORCPT ); Thu, 17 Apr 2008 05:55:14 -0400 Date: Thu, 17 Apr 2008 18:52:54 +0900 From: KOSAKI Motohiro To: Mathieu Desnoyers Subject: Re: [RFC patch 15/27] Immediate Values - Documentation Cc: kosaki.motohiro@jp.fujitsu.com, Ingo Molnar , linux-kernel@vger.kernel.org, Rusty Russell , Adrian Bunk , Andi Kleen , Christoph Hellwig , akpm@osdl.org In-Reply-To: <20080416213552.942797527@polymtl.ca> References: <20080416213426.298498397@polymtl.ca> <20080416213552.942797527@polymtl.ca> Message-Id: <20080417184930.A8CD.KOSAKI.MOTOHIRO@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="ISO-2022-JP" Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver. 2.42 [ja] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > +Memory read: > +644.09ツア11.39 - 88.16ツア1.35 = 555.93ツア11.46 cycles > + > +Getppid without memory pressure: > +1462.09ツア18.87 - 150.92ツア1.01 = 1311.17ツア18.90 cycles > + > +Getppid with memory pressure: > +17113.33ツア1655.92 - 578.22ツア269.51 = 16535.11ツア1677.71 cycles > + > +Therefore, if we add 2 markers not based on immediate values to the getppid > +code, which would add 2 memory reads, we would add > +2 * 555.93ツア12.74 = 1111.86ツア25.48 cycles sorry.. non ascii character is harmful for some language region user. Couldn't you write ascii only?