Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754324AbXLELpE (ORCPT ); Wed, 5 Dec 2007 06:45:04 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751625AbXLELoy (ORCPT ); Wed, 5 Dec 2007 06:44:54 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:49748 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751502AbXLELox (ORCPT ); Wed, 5 Dec 2007 06:44:53 -0500 Date: Wed, 5 Dec 2007 12:44:38 +0100 From: Ingo Molnar To: Gregory Haskins Cc: rostedt@goodmis.org, linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org Subject: Re: [PATCH 3/3] Subject: SCHED - Use a 2-d bitmap for searching lowest-pri CPU Message-ID: <20071205114438.GC6143@elte.hu> References: <20071205025137.4494.18683.stgit@novell1.haskins.net> <20071205025538.4494.52380.stgit@novell1.haskins.net> <20071205093412.GA17911@elte.hu> <475634F8.BA47.005A.0@novell.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <475634F8.BA47.005A.0@novell.com> User-Agent: Mutt/1.5.17 (2007-11-01) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1161 Lines: 25 * Gregory Haskins wrote: > However, that said, Steven's testing work on the mainline port of our > series sums it up very nicely, so I will present that in lieu of > digging up my -rt numbers unless you specifically want them too. Here > they are: i'm well aware of Steve's benchmarking efforts, but i dont think he's finished with it and i'll let him present the results once he wants to announce them. I asked about the effects of the "2-d" patch in isolation and i'm not sure the numbers show that individual patch in action. in any case, you are preaching to the choir, i wrote the first rt-overload code and it's been in -rt forever so it's not like you need to sell me the concept ;-) But upstream quality requirements are different from -rt and we need to examine all aspects of scheduling, not just latency. In any case, i'll wait for the rest of Steve's numbers. Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/