From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932320AbWDGHON (ORCPT ); Fri, 7 Apr 2006 03:14:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932321AbWDGHON (ORCPT ); Fri, 7 Apr 2006 03:14:13 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:63629 "EHLO mx3.mail.elte.hu") by vger.kernel.org with ESMTP id S932320AbWDGHOM (ORCPT ); Fri, 7 Apr 2006 03:14:12 -0400 Date: Fri, 7 Apr 2006 09:11:25 +0200 From: Ingo Molnar To: Bill Huey Cc: Darren Hart , linux-kernel@vger.kernel.org, Thomas Gleixner , "Stultz, John" , Peter Williams , "Siddha, Suresh B" , Nick Piggin Subject: Re: RT task scheduling Message-ID: <20060407071125.GA2563@elte.hu> References: <200604052025.05679.darren@dvhart.com> <20060406073753.GA18349@elte.hu> <20060407030713.GA9623@gnuppy.monkey.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060407030713.GA9623@gnuppy.monkey.org> User-Agent: Mutt/1.4.2.1i X-ELTE-SpamScore: 0.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=0.0 required=5.9 tests=AWL autolearn=no SpamAssassin version=3.0.3 0.0 AWL AWL: From: address is in the auto white-list X-ELTE-VirusStatus: clean Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Bill Huey wrote: > On Thu, Apr 06, 2006 at 09:37:53AM +0200, Ingo Molnar wrote: > > do "global" decisions for what RT tasks to run on which CPU. To put even > > less overhead on the mainstream kernel, i plan to introduce a new > > SCHED_FIFO_GLOBAL scheduling policy to trigger this behavior. [it doesnt > > make much sense to extend SCHED_RR in that direction.] > > You should consider for a moment to allow for the binding of a thread > to a CPU to determine the behavior of a SCHED_FIFO class task instead > of creating a new run category. [...] That is already possible and has been possible for years. Ingo