From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754642AbaCKNsd (ORCPT ); Tue, 11 Mar 2014 09:48:33 -0400 Received: from service87.mimecast.com ([91.220.42.44]:37246 "EHLO service87.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752889AbaCKNsc convert rfc822-to-8bit (ORCPT ); Tue, 11 Mar 2014 09:48:32 -0400 Message-ID: <531F142C.2030203@arm.com> Date: Tue, 11 Mar 2014 13:48:28 +0000 From: Dietmar Eggemann User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.3.0 MIME-Version: 1.0 To: Vincent Guittot , Peter Zijlstra CC: "fenghua.yu@intel.com" , "linaro-kernel@lists.linaro.org" , "tony.luck@intel.com" , "linux@arm.linux.org.uk" , "benh@kernel.crashing.org" , "linux-kernel@vger.kernel.org" , "cmetcalf@tilera.com" , "mingo@kernel.org" , "preeti@linux.vnet.ibm.com" , "james.hogan@imgtec.com" , "schwidefsky@de.ibm.com" , "linux-arm-kernel@lists.infradead.org" Subject: Re: [PATCH 2/6] sched: rework of sched_domain topology definition References: <1394003906-11630-1-git-send-email-vincent.guittot@linaro.org> <1394003906-11630-3-git-send-email-vincent.guittot@linaro.org> <53175A3C.8010100@arm.com> <20140311103119.GW9987@twins.programming.kicks-ass.net> In-Reply-To: X-OriginalArrivalTime: 11 Mar 2014 13:48:37.0222 (UTC) FILETIME=[9A398860:01CF3D30] X-MC-Unique: 114031113483000401 Content-Type: text/plain; charset=WINDOWS-1252 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/03/14 13:27, Vincent Guittot wrote: > On 11 March 2014 11:31, Peter Zijlstra wrote: >> On Thu, Mar 06, 2014 at 04:32:35PM +0800, Vincent Guittot wrote: >>>> Never got the new name DIE for CPU? Might confuse people when they use >>>> /proc/sys/kernel/sched_domain/cpuX/domainY/name or sched_domain_debug_one(). >>> >>> In fact, CPU is also confusing because it's used for different things. >>> But if it makes things even more confusing, i can come back to CPU >> >> Yeah, not sure DIE is the right thing either; because there's multi-die >> packages that get classified under CPU :-) >> >> Take for example the Core 2 Quad, which was 2 dual core dies glued >> together in a single package. >> >> There's also the AMD bulldozer which glued two dies into a single >> package; but for those its not a problem because each die is a separate >> numa node, so there DIE would actually be the correct term and PACKAGE >> would be wrong. >> >> So while CPU sucks, I'm not sure we can come up with anything that's >> actually correct. That said; we could try for something less wrong than >> CPU :-) > > OK > > Dietmar, > > Have you got another naming that DIE that could suit better ? > otherwise i will keep it If backward compatibility is not an issue here, keep it. -- Dietmar > > Vincent > >> >> I'm not sure there are a lot of people who see/know the names of these >> domains to be bothered by a change in them; it might be limited to just >> us for all I know. >> >> _______________________________________________ >> linux-arm-kernel mailing list >> linux-arm-kernel@lists.infradead.org >> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel >