From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261294AbVETERR (ORCPT ); Fri, 20 May 2005 00:17:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261244AbVETERR (ORCPT ); Fri, 20 May 2005 00:17:17 -0400 Received: from wproxy.gmail.com ([64.233.184.202]:7013 "EHLO wproxy.gmail.com") by vger.kernel.org with ESMTP id S261294AbVETERN convert rfc822-to-8bit (ORCPT ); Fri, 20 May 2005 00:17:13 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=Bo77NIXf+bKI4oXtQ1MDMoQh0oDYwvCZwhgdR71te7Bei+AyyfkelHtgSfYKPogXFC4Bgdm8RUpk7wfCaKYk/ijDI3hHkmx6LZVFyDHTNHIL1QCgaAh+WqXjkORWlz6lcGSgRjjP7kbbTJeL8a3RlwU9595LOFVgECxcPV667dw= Message-ID: <855e4e460505192117155577e@mail.gmail.com> Date: Thu, 19 May 2005 21:17:11 -0700 From: chen Shang Reply-To: chen Shang To: Nick Piggin Subject: Re: [PATCH] kernel kernel/sched.c Cc: linux-kernel@vger.kernel.org In-Reply-To: <428D58E6.8050001@yahoo.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Content-Disposition: inline References: <855e4e4605051909561f47351@mail.gmail.com> <428D58E6.8050001@yahoo.com.au> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > Hi Chen, > With the added branch and the extra icache footprint, it isn't clear > that this would be a win. > > Also, you didn't say where your statistics came from (what workload). > > So you really need to start by demonstrating some increase on some workload. > > Also, minor comments on the patch: please work against mm kernels, > please follow > kernel coding style, and don't change schedstat output format in the > same patch > (makes it easier for those with schedstat parsing tools). > Hi Nick, Thank you very much for your comments. This is the first time of my kernel hacking. I will reduce the lines of changes as much as possible. As regard to the statistics, there are just count, ie, the total number of priority-recalculations vs. the number of priority changed from the former recalculation. Thanks again, -chen