From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752637Ab3GAFj5 (ORCPT ); Mon, 1 Jul 2013 01:39:57 -0400 Received: from e31.co.us.ibm.com ([32.97.110.149]:49066 "EHLO e31.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750947Ab3GAFj4 (ORCPT ); Mon, 1 Jul 2013 01:39:56 -0400 Date: Mon, 1 Jul 2013 11:09:47 +0530 From: Srikar Dronamraju To: Mel Gorman Cc: Peter Zijlstra , Ingo Molnar , Andrea Arcangeli , Johannes Weiner , Linux-MM , LKML Subject: Re: [PATCH 0/6] Basic scheduler support for automatic NUMA balancing Message-ID: <20130701053947.GQ8362@linux.vnet.ibm.com> Reply-To: Srikar Dronamraju References: <1372257487-9749-1-git-send-email-mgorman@suse.de> <20130628135422.GA21895@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <20130628135422.GA21895@linux.vnet.ibm.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-MML: No X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13070105-7282-0000-0000-000018D4E8BE Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Srikar Dronamraju [2013-06-28 19:24:22]: > * Mel Gorman [2013-06-26 15:37:59]: > > > It's several months overdue and everything was quiet after 3.8 came out > > but I recently had a chance to revisit automatic NUMA balancing for a few > > days. I looked at basic scheduler integration resulting in the following > > small series. Much of the following is heavily based on the numacore series > > which in itself takes part of the autonuma series from back in November. In > > particular it borrows heavily from Peter Ziljstra's work in "sched, numa, > > mm: Add adaptive NUMA affinity support" but deviates too much to preserve > > Signed-off-bys. As before, if the relevant authors are ok with it I'll > > add Signed-off-bys (or add them yourselves if you pick the patches up). > > > Here is a snapshot of the results of running autonuma-benchmark running on 8 > node 64 cpu system with hyper threading disabled. Ran 5 iterations for each > setup > > KernelVersion: 3.9.0-mainline_v39+() > Testcase: Min Max Avg > numa01: 1784.16 1864.15 1800.16 > numa02: 32.07 32.72 32.59 > > KernelVersion: 3.9.0-mainline_v39+() + mel's patches > Testcase: Min Max Avg %Change > numa01: 1752.48 1859.60 1785.60 0.82% > numa02: 47.21 60.58 53.43 -39.00% > > So numa02 case; we see a degradation of around 39%. > I reran the tests again KernelVersion: 3.9.0-mainline_v39+() Testcase: Min Max Avg numa01: 1784.16 1864.15 1800.16 numa01_THREAD_ALLOC: 293.75 315.35 311.03 numa02: 32.07 32.72 32.59 numa02_SMT: 39.27 39.79 39.69 KernelVersion: 3.9.0-mainline_v39+() + your patches Testcase: Min Max Avg %Change numa01: 1720.40 1876.89 1767.75 1.83% numa01_THREAD_ALLOC: 464.34 554.82 496.64 -37.37% numa02: 52.02 58.57 56.21 -42.02% numa02_SMT: 42.07 52.64 47.33 -16.14% -- Thanks and Regards Srikar Dronamraju