From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750802AbVLYHJj (ORCPT ); Sun, 25 Dec 2005 02:09:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750803AbVLYHJj (ORCPT ); Sun, 25 Dec 2005 02:09:39 -0500 Received: from omta04ps.mx.bigpond.com ([144.140.83.156]:12966 "EHLO omta04ps.mx.bigpond.com") by vger.kernel.org with ESMTP id S1750802AbVLYHJi (ORCPT ); Sun, 25 Dec 2005 02:09:38 -0500 Message-ID: <43AE45AF.3010907@bigpond.net.au> Date: Sun, 25 Dec 2005 18:09:35 +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: Re: [ANNOUNCE][RFC] PlugSched-6.1.6 for 2.6.15-rc5 and 2.6.15-rc5-mm2 References: <439E6BA0.8020302@bigpond.net.au> In-Reply-To: <439E6BA0.8020302@bigpond.net.au> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Authentication-Info: Submitted using SMTP AUTH PLAIN at omta04ps.mx.bigpond.com from [147.10.133.38] using ID pwil3058@bigpond.net.au at Sun, 25 Dec 2005 07:09:35 +0000 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Peter Williams wrote: > 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: > > Applies cleanly to 2.6.15-rc7 so no new patch will be posted. > > > 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