From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932281AbVLMGfR (ORCPT ); Tue, 13 Dec 2005 01:35:17 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932355AbVLMGfQ (ORCPT ); Tue, 13 Dec 2005 01:35:16 -0500 Received: from omta05ps.mx.bigpond.com ([144.140.83.195]:8020 "EHLO omta05ps.mx.bigpond.com") by vger.kernel.org with ESMTP id S932281AbVLMGfP (ORCPT ); Tue, 13 Dec 2005 01:35:15 -0500 Message-ID: <439E6BA0.8020302@bigpond.net.au> Date: Tue, 13 Dec 2005 17:35:12 +1100 From: Peter Williams User-Agent: Mozilla Thunderbird 1.0.7-1.1.fc4 (X11/20050929) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Linux Kernel Mailing List CC: Chris Han , Con Kolivas , William Lee Irwin III , Jake Moilanen Subject: [ANNOUNCE][RFC] PlugSched-6.1.6 for 2.6.15-rc5 and 2.6.15-rc5-mm2 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Authentication-Info: Submitted using SMTP AUTH PLAIN at omta05ps.mx.bigpond.com from [147.10.133.38] using ID pwil3058@bigpond.net.au at Tue, 13 Dec 2005 06:35:12 +0000 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This version features a major gutting of the SPA based schedulers to reduce overhead. The inclusion of the mechanisms for gathering and displaying accrued scheduling statistics have been made a compile time configurable option (default is exclusion) as they are not an integral part of the scheduler and were mainly there to help with tuning. In a future version they will be removed completely. Additionally, the mechanism for auto detection and preferential treatment of media streamers in the spa_ws scheduler has been made a compile time option (default is exclusion). The reason for this is that my testing shows that the performance of media streamers on spa_ws is adequate without it. This will also be removed in a future version unless requested otherwise. A patch for 2.6.15-rc5 is available at: and a patch for 2.6.15-rc5-mm2 is available at: Very Brief Documentation: You can select a default scheduler at kernel build time. If you wish to boot with a scheduler other than the default it can be selected at boot time by adding: cpusched= to the boot command line where is one of: ingosched, nicksched, staircase, spa_no_frills, spa_ws, spa_svr or zaphod. If you don't change the default when you build the kernel the default scheduler will be ingosched (which is the normal scheduler). The scheduler in force on a running system can be determined by the contents of: /proc/scheduler Control parameters for the scheduler can be read/set via files in: /sys/cpusched// Peter -- Peter Williams pwil3058@bigpond.net.au "Learning, n. The kind of ignorance distinguishing the studious." -- Ambrose Bierce