Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752177AbZIGVDr (ORCPT ); Mon, 7 Sep 2009 17:03:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751959AbZIGVDq (ORCPT ); Mon, 7 Sep 2009 17:03:46 -0400 Received: from bombadil.infradead.org ([18.85.46.34]:39828 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751772AbZIGVDq (ORCPT ); Mon, 7 Sep 2009 17:03:46 -0400 Subject: Re: BFS vs. mainline scheduler benchmarks and measurements From: Peter Zijlstra To: Jens Axboe Cc: Ingo Molnar , Avi Kivity , Con Kolivas , linux-kernel@vger.kernel.org, Mike Galbraith In-Reply-To: <20090907204645.GK18599@kernel.dk> References: <20090906205952.GA6516@elte.hu> <20090907094953.GP18599@kernel.dk> <4AA54AA7.9080709@redhat.com> <20090907184640.GG18599@kernel.dk> <20090907203627.GA17731@elte.hu> <20090907204645.GK18599@kernel.dk> Content-Type: text/plain Date: Mon, 07 Sep 2009 23:03:37 +0200 Message-Id: <1252357417.7959.52.camel@laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.26.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 570 Lines: 16 On Mon, 2009-09-07 at 22:46 +0200, Jens Axboe wrote: > > a bug in the SMP load-balancer that can cause interactivity problems > > on large CPU count systems. > > Worth trying on the dual core box? I debugged the issue on a dual core :-) It should be more pronounced on larger machines, but its present on dual-core too. -- 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/