From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759110Ab2CTXlL (ORCPT ); Tue, 20 Mar 2012 19:41:11 -0400 Received: from gw.danplanet.com ([50.43.125.66]:40788 "EHLO mail.danplanet.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751275Ab2CTXlJ (ORCPT ); Tue, 20 Mar 2012 19:41:09 -0400 From: Dan Smith To: Andrea Arcangeli Cc: Peter Zijlstra , Linus Torvalds , Andrew Morton , Thomas Gleixner , Ingo Molnar , Paul Turner , Suresh Siddha , Mike Galbraith , "Paul E. McKenney" , Lai Jiangshan , Bharata B Rao , Lee Schermerhorn , Rik van Riel , Johannes Weiner , linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [RFC] AutoNUMA alpha6 References: <20120316144028.036474157@chello.nl> <20120316182511.GJ24602@redhat.com> Date: Tue, 20 Mar 2012 16:41:06 -0700 In-Reply-To: <20120316182511.GJ24602@redhat.com> (Andrea Arcangeli's message of "Fri, 16 Mar 2012 19:25:11 +0100") Message-ID: <87k42edenh.fsf@danplanet.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org AA> Could you try my two trivial benchmarks I sent on lkml too? I just got around to running your numa01 test on mainline, autonuma, and numasched. This is on a 2-socket, 6-cores-per-socket, 2-threads-per-core machine, with your test configured to run 24 threads. I also ran Peter's modified stream_d on all three as well, with 24 instances in parallel. I know it's already been pointed out that it's not the ideal or end-all benchmark, but I figured it was still worthwhile to see if the trend continued. On your numa01 test: Autonuma is 22% faster than mainline Numasched is 42% faster than mainline On Peter's modified stream_d test: Autonuma is 35% *slower* than mainline Numasched is 55% faster than mainline I know that the "real" performance guys here are going to be posting some numbers from more interesting benchmarks soon, but since nobody had answered Andrea's question, I figured I'd do it. -- Dan Smith IBM Linux Technology Center