From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262970AbUBZTtt (ORCPT ); Thu, 26 Feb 2004 14:49:49 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262965AbUBZTtr (ORCPT ); Thu, 26 Feb 2004 14:49:47 -0500 Received: from mtaw6.prodigy.net ([64.164.98.56]:9205 "EHLO mtaw6.prodigy.net") by vger.kernel.org with ESMTP id S262970AbUBZTsP (ORCPT ); Thu, 26 Feb 2004 14:48:15 -0500 Message-ID: <403E4D66.3040608@matchmail.com> Date: Thu, 26 Feb 2004 11:47:50 -0800 From: Mike Fedyk User-Agent: Mozilla Thunderbird 0.5 (X11/20040209) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Timothy Miller CC: Peter Williams , linux-kernel@vger.kernel.org Subject: Re: [RFC][PATCH] O(1) Entitlement Based Scheduler References: <403D3E47.4080501@techsource.com> <403D576A.6030900@aurema.com> <403D5D32.4010007@matchmail.com> <403E1A7A.6030804@techsource.com> In-Reply-To: <403E1A7A.6030804@techsource.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Timothy Miller wrote: > How about this: > > The kernel tracks CPU usage, time slice expiration, and numerous other > statistics, and exports them to userspace through /proc or somesuch. > Then a user-space daemon adjusts priority. This could work, but it > would be sluggish in adjusting priorities. Userspace shouldn't have to poll, especially if there needs to be low latency in the interaction.