From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932133Ab3GBF3M (ORCPT ); Tue, 2 Jul 2013 01:29:12 -0400 Received: from e9.ny.us.ibm.com ([32.97.182.139]:49040 "EHLO e9.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751477Ab3GBF3L (ORCPT ); Tue, 2 Jul 2013 01:29:11 -0400 Date: Tue, 2 Jul 2013 10:58:12 +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: <20130702052812.GA2654@linux.vnet.ibm.com> Reply-To: Srikar Dronamraju References: <1372257487-9749-1-git-send-email-mgorman@suse.de> <20130628135422.GA21895@linux.vnet.ibm.com> <20130701053947.GQ8362@linux.vnet.ibm.com> <20130701084321.GD1875@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <20130701084321.GD1875@suse.de> User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-MML: No x-cbid: 13070205-7182-0000-0000-000007997D77 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Mel Gorman [2013-07-01 09:43:21]: > > Thanks. Each of the the two runs had 5 iterations and there is a > difference in the reported average. Do you know what the standard > deviation is of the results? Yes, the results were from 2 different runs. I hadnt calculated the std deviation for those runs. > > I'm less concerned about the numa01 results as it is an adverse > workload on machins with more than two sockets but the numa02 results > are certainly of concern. My own testing for numa02 showed little or no > change. Would you mind testing with "Increase NUMA PTE scanning when a > new preferred node is selected" reverted please? > Here are the results with the last patch reverted as requested by you. KernelVersion: 3.9.0-mainline_v39+ your patches - last patch Testcase: Min Max Avg StdDev %Change numa01: 1704.50 1841.82 1757.55 49.27 2.42% numa01_THREAD_ALLOC: 433.25 517.07 464.17 28.15 -32.99% numa02: 55.64 61.75 57.70 2.19 -43.52% numa02_SMT: 44.78 53.45 48.72 2.91 -18.53% Detailed run output here numa01 1704.50 248.67 71999.86 207091 1093 numa01_THREAD_ALLOC 461.62 416.89 23064.79 90283 961 numa02 61.75 93.86 2444.21 10652 6 numa02_SMT 46.79 23.13 977.94 1925 8 numa01 1769.09 262.00 74607.77 226677 1313 numa01_THREAD_ALLOC 433.25 365.12 21994.25 88597 773 numa02 55.64 89.52 2250.01 8848 210 numa02_SMT 49.39 19.81 938.86 1376 33 numa01 1841.82 407.73 78683.69 227428 1834 numa01_THREAD_ALLOC 517.07 465.71 26152.60 111689 978 numa02 55.95 103.26 2223.36 8471 158 numa02_SMT 53.45 19.73 962.08 1349 26 numa01 1760.41 474.74 76094.03 231278 2802 numa01_THREAD_ALLOC 456.80 395.35 23170.23 88049 835 numa02 57.18 87.31 2390.11 10804 3 numa02_SMT 44.78 26.48 944.28 1314 7 numa01 1711.91 421.49 77728.30 224185 2103 numa01_THREAD_ALLOC 452.09 430.88 22271.38 83418 2035 numa02 57.97 126.86 2354.34 8991 135 numa02_SMT 49.19 34.99 914.35 1308 22 > -- > Mel Gorman > SUSE Labs > -- Thanks and Regards Srikar Dronamraju