Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934283AbXEPXmh (ORCPT ); Wed, 16 May 2007 19:42:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757354AbXEPXmb (ORCPT ); Wed, 16 May 2007 19:42:31 -0400 Received: from omta02ps.mx.bigpond.com ([144.140.83.154]:59213 "EHLO omta02ps.mx.bigpond.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757812AbXEPXma (ORCPT ); Wed, 16 May 2007 19:42:30 -0400 Message-ID: <464B96DD.2000706@bigpond.net.au> Date: Thu, 17 May 2007 09:42:21 +1000 From: Peter Williams User-Agent: Thunderbird 1.5.0.10 (X11/20070302) MIME-Version: 1.0 To: Ingo Molnar CC: linux-kernel@vger.kernel.org, Linus Torvalds , Andrew Morton , Con Kolivas , Nick Piggin , Mike Galbraith , Arjan van de Ven , Thomas Gleixner , caglar@pardus.org.tr, Willy Tarreau , Gene Heskett , Mark Lord Subject: Re: [patch] CFS scheduler, -v12 References: <20070513153853.GA19846@elte.hu> <464A6698.3080400@bigpond.net.au> <20070516080843.GA8909@elte.hu> In-Reply-To: <20070516080843.GA8909@elte.hu> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Authentication-Info: Submitted using SMTP AUTH PLAIN at oaamta02ps.mx.bigpond.com from [138.130.234.53] using ID pwil3058@bigpond.net.au at Wed, 16 May 2007 23:42:27 +0000 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1309 Lines: 34 Ingo Molnar wrote: > * Peter Williams wrote: > >>> As usual, any sort of feedback, bugreport, fix and suggestion is more >>> than welcome, >> Load balancing appears to be badly broken in this version. When I >> started 4 hard spinners on my 2 CPU machine one ended up on one CPU >> and the other 3 on the other CPU and they stayed there. > > hm, i cannot reproduce this on 4 different SMP boxen, trying various > combinations of SCHED_SMT/MC You may need to try more than once. Testing load balancing can be a pain as there's always a possibility you'll get a good result just by chance. I.e. you need a bunch of good results to say it's OK but only one bad result to say it's broken. This makes testing load balancing a pain. > and other .config options that might make a > difference to balancing. Could you send me your .config? Sent separately. Peter -- Peter Williams pwil3058@bigpond.net.au "Learning, n. The kind of ignorance distinguishing the studious." -- Ambrose Bierce - 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/