Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030283AbWBHKoG (ORCPT ); Wed, 8 Feb 2006 05:44:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030287AbWBHKoG (ORCPT ); Wed, 8 Feb 2006 05:44:06 -0500 Received: from ecfrec.frec.bull.fr ([129.183.4.8]:17382 "EHLO ecfrec.frec.bull.fr") by vger.kernel.org with ESMTP id S1030283AbWBHKoE convert rfc822-to-8bit (ORCPT ); Wed, 8 Feb 2006 05:44:04 -0500 Subject: Re: preempt-rt, NUMA and strange latency traces From: =?ISO-8859-1?Q?S=E9bastien_Dugu=E9?= To: Ingo Molnar Cc: Steven Rostedt , "linux-kernel@vger.kernel.org" In-Reply-To: <20060208102500.GA10942@elte.hu> References: <1139311689.19708.36.camel@frecb000686> <20060208102500.GA10942@elte.hu> Date: Wed, 08 Feb 2006 11:47:02 +0100 Message-Id: <1139395622.23722.0.camel@frecb000686> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 X-MIMETrack: Itemize by SMTP Server on ECN002/FR/BULL(Release 5.0.12 |February 13, 2003) at 08/02/2006 11:44:55, Serialize by Router on ECN002/FR/BULL(Release 5.0.12 |February 13, 2003) at 08/02/2006 11:44:58, Serialize complete at 08/02/2006 11:44:58 Content-Transfer-Encoding: 8BIT Content-Type: text/plain; charset=ISO-8859-15 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1014 Lines: 30 On Wed, 2006-02-08 at 11:25 +0100, Ingo Molnar wrote: > * Steven Rostedt wrote: > > > > I've been experimenting with 2.6.15-rt16 on a dual 2.8GHz Xeon box > > > with quite good results and decided to make a run on a NUMA dual node > > > IBM x440 (8 1.4GHz Xeon, 28GB ram). > > > > > > However, the kernel crashes early when creating the slabs. Does the > > > current preempt-rt patchset supports NUMA machines or has support > > > been disabled until things settle down? > > > > Yeah, currently the -rt patch doesn't work well with NUMA. > > FYI, i've got a new port of upstream slab.c to -rt, which should work on > NUMA too. It'll be in -rt17 (later today or tomorrow). > > Ingo Great, I sure will try it. Thanks. S?bastien. - 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/