From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751338AbVI1Oag (ORCPT ); Wed, 28 Sep 2005 10:30:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751339AbVI1Oag (ORCPT ); Wed, 28 Sep 2005 10:30:36 -0400 Received: from omx2-ext.sgi.com ([192.48.171.19]:35245 "EHLO omx2.sgi.com") by vger.kernel.org with ESMTP id S1751338AbVI1Oaf (ORCPT ); Wed, 28 Sep 2005 10:30:35 -0400 Date: Wed, 28 Sep 2005 07:29:58 -0700 From: Paul Jackson To: KUROSAWA Takahiro Cc: taka@valinux.co.jp, magnus.damm@gmail.com, dino@in.ibm.com, linux-kernel@vger.kernel.org, ckrm-tech@lists.sourceforge.net Subject: Re: [PATCH 1/3] CPUMETER: add cpumeter framework to the CPUSETS Message-Id: <20050928072958.1c54ecf6.pj@sgi.com> In-Reply-To: <20050927113902.C78A570046@sv1.valinux.co.jp> References: <20050908225539.0bc1acf6.pj@sgi.com> <20050909.203849.33293224.taka@valinux.co.jp> <20050909063131.64dc8155.pj@sgi.com> <20050910.161145.74742186.taka@valinux.co.jp> <20050910015209.4f581b8a.pj@sgi.com> <20050926093432.9975870043@sv1.valinux.co.jp> <20050927013751.47cbac8b.pj@sgi.com> <20050927113902.C78A570046@sv1.valinux.co.jp> Organization: SGI X-Mailer: Sylpheed version 2.0.0beta5 (GTK+ 2.4.9; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Takahiro-san wrote: > but the cpu controller code will add some if statements >>From what I read, I suspect that the more interesting question will be how many additional cache lines and memory pages are touched, on the most common paths through the scheduler. However, guessing about performance is a risky business. Benchmarks will be most helpful for a significant scheduler patch such as this one. -- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson 1.925.600.0401