From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752848AbcDGClG (ORCPT ); Wed, 6 Apr 2016 22:41:06 -0400 Received: from szxga01-in.huawei.com ([58.251.152.64]:52149 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750923AbcDGClE (ORCPT ); Wed, 6 Apr 2016 22:41:04 -0400 Message-ID: <5705C886.90708@huawei.com> Date: Thu, 7 Apr 2016 10:40:06 +0800 From: Xishi Qiu User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:12.0) Gecko/20120428 Thunderbird/12.0.1 MIME-Version: 1.0 To: kernel test robot CC: Naoya Horiguchi , Joonsoo Kim , David Rientjes , Laura Abbott , Hui Zhu , Wang Xiaoqiang , LKML , Subject: Re: [lkp] [mm] 6f25a14a70: will-it-scale.scalability -4.0% regression References: <20160407010657.GB12139@yexl-desktop> In-Reply-To: <20160407010657.GB12139@yexl-desktop> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 8bit X-Originating-IP: [10.177.25.179] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090203.5705C8A4.0016,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 6124effb00ceb6c3f6a4af47567d5bf0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2016/4/7 9:06, kernel test robot wrote: > FYI, we noticed that will-it-scale.scalability -4.0% regression on > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > commit 6f25a14a7053b69917e2ebea0d31dd444cd31fd5 ("mm: fix invalid node in alloc_migrate_target()") > alloc_migrate_target() is called from cma or mem-offline. I have no idea what's the relation between these, any ideas? Thanks, Xishi Qiu > > ========================================================================================= > compiler/cpufreq_governor/kconfig/rootfs/tbox_group/test/testcase: > gcc-4.9/performance/x86_64-rhel/debian-x86_64-2015-02-07.cgz/lkp-ivb-d03/pthread_mutex1/will-it-scale > > commit: > 969e8d7e47f93ef693028667480558de8f70523f > 6f25a14a7053b69917e2ebea0d31dd444cd31fd5 > > 969e8d7e47f93ef6 6f25a14a7053b69917e2ebea0d > ---------------- -------------------------- > fail:runs %reproduction fail:runs > %stddev %change %stddev > \ | \ > 2.032e+08 ± 0% -1.6% 2e+08 ± 0% will-it-scale.per_process_ops > 0.83 ± 0% -4.0% 0.79 ± 0% will-it-scale.scalability > 214103 ± 14% -20.2% 170884 ± 14% sched_debug.cpu.ttwu_count.stddev > 3789 ± 7% -10.3% 3398 ± 6% slabinfo.anon_vma_chain.active_objs > 4660 ± 5% +7.7% 5019 ± 2% vmstat.system.in > > > lkp-ivb-d03: Ivy Bridge > Memory: 4G > > > > To reproduce: > > git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git > cd lkp-tests > bin/lkp install job.yaml # job file is attached in this email > bin/lkp run job.yaml > > > Disclaimer: > Results have been estimated based on internal Intel analysis and are provided > for informational purposes only. Any difference in system hardware or software > design or configuration may affect actual performance. > > > Thanks, > Xiaolong Ye