Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755875AbZIBFx4 (ORCPT ); Wed, 2 Sep 2009 01:53:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755866AbZIBFxz (ORCPT ); Wed, 2 Sep 2009 01:53:55 -0400 Received: from gate.crashing.org ([63.228.1.57]:33210 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755831AbZIBFxz (ORCPT ); Wed, 2 Sep 2009 01:53:55 -0400 Subject: Re: [PATCH] Fix fake numa on ppc From: Benjamin Herrenschmidt To: Ankita Garg Cc: Balbir Singh , linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org In-Reply-To: <20090902053653.GA3806@in.ibm.com> References: <20090901050316.GA4076@in.ibm.com> <20090901055753.GB5563@balbir.in.ibm.com> <20090901092407.GC4076@in.ibm.com> <20090901142729.GA5022@balbir.in.ibm.com> <20090902053653.GA3806@in.ibm.com> Content-Type: text/plain Date: Wed, 02 Sep 2009 15:53:43 +1000 Message-Id: <1251870823.14675.420.camel@pasglop> 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: 859 Lines: 23 On Wed, 2009-09-02 at 11:06 +0530, Ankita Garg wrote: > > Oh! interesting.. cpuless nodes :) I think we need to fix this in the > > longer run and distribute cpus between fake numa nodes of a real node > > using some acceptable heuristic. > > > > True. Presently this is broken on both x86 and ppc systems. It would be > interesting to find a way to map, for example, 4 cpus to >4 number of > fake nodes created from a single real numa node! Since I'm pretty sure there could be CPU less nodes just like there could be memory-less nodes, it would be good if fake numa could simulate them too :-) Cheers, Ben. -- 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/