Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754563AbYBZRQk (ORCPT ); Tue, 26 Feb 2008 12:16:40 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1762498AbYBZRQ3 (ORCPT ); Tue, 26 Feb 2008 12:16:29 -0500 Received: from lizzard.sbs.de ([194.138.37.39]:60088 "EHLO lizzard.sbs.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762436AbYBZRQ2 (ORCPT ); Tue, 26 Feb 2008 12:16:28 -0500 Message-ID: <47C4494C.1090600@siemens.com> Date: Tue, 26 Feb 2008 18:15:56 +0100 From: Jan Kiszka User-Agent: Thunderbird 2.0.0.9 (X11/20070801) MIME-Version: 1.0 To: Steven Rostedt CC: LKML , RT , Ingo Molnar , Thomas Gleixner Subject: Re: 2.6.24.2-rt2 References: <1203639849.7551.4.camel@localhost.localdomain> <47C3EA1F.3030203@siemens.com> <47C3FF82.6060900@siemens.com> <47C43289.80506@siemens.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1304 Lines: 34 Steven Rostedt wrote: > > On Tue, 26 Feb 2008, Jan Kiszka wrote: >>> What's the NUMA topology? >> 4 nodes. I'm not sure if it is really NUMA related, but the same kernel >> runs that test as expected on a non-NUMA 2x2 box. >> >>> What tasks are running, and at what priorities? >> 40 pthreads, created with default parameters from a main thread which >> runs with default parameters as well. The threads simply run endless loops. >> >>> Those three idle CPUS, should they have tasks running on them? >> For sure, given the overload situation of the system (40x full load vs. >> 16 cores). Neither did we fiddle with any parameter of the system >> (knowingly, its a standard openSUSE 10.3 underneath) nor did we set >> thread affinities. >> > > Do you get different behaviour with 2.6.24.2? Last time I checked mainline (I think 2.6.24), it was fine. It was definitely fine for 2.6.23. But I'm going to revalidate this once the machine is free again (tomorrow). Jan -- Siemens AG, Corporate Technology, CT SE 2 Corporate Competence Center Embedded Linux -- 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/