Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261586AbVDEGxR (ORCPT ); Tue, 5 Apr 2005 02:53:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261584AbVDEGxR (ORCPT ); Tue, 5 Apr 2005 02:53:17 -0400 Received: from one.firstfloor.org ([213.235.205.2]:65477 "EHLO one.firstfloor.org") by vger.kernel.org with ESMTP id S261586AbVDEGxI (ORCPT ); Tue, 5 Apr 2005 02:53:08 -0400 To: Paul Jackson Cc: kenneth.w.chen@intel.com, torvalds@osdl.org, nickpiggin@yahoo.com.au, akpm@osdl.org, linux-kernel@vger.kernel.org Subject: Re: [patch] sched: auto-tune migration costs References: <200504020100.j3210fg04870@unix-os.sc.intel.com> <20050402145351.GA11601@elte.hu> <20050402215332.79ff56cc.pj@engr.sgi.com> <20050403070415.GA18893@elte.hu> <20050403043420.212290a8.pj@engr.sgi.com> <20050403071227.666ac33d.pj@engr.sgi.com> <20050403150102.GA25442@elte.hu> <20050403153056.0ad6ee8e.pj@engr.sgi.com> From: Andi Kleen Date: Tue, 05 Apr 2005 08:53:04 +0200 In-Reply-To: <20050403153056.0ad6ee8e.pj@engr.sgi.com> (Paul Jackson's message of "Sun, 3 Apr 2005 15:30:56 -0700") Message-ID: User-Agent: Gnus/5.110002 (No Gnus v0.2) Emacs/21.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 685 Lines: 19 Paul Jackson writes: > > We already expose the SLIT table node distances (using SN2 specific > /proc files today, others are working on an arch-neutral mechanism). There is already an arch neutral mechanism in sysfs, see /sys/devices/system/node/node*/distance That should be exactly SLIT on x86-64 and IA64 where node_distance() reports SLIT data. But of course SLIT doesn't know anything about cache latencies. /Andi - 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/