From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754687AbbI3IgF (ORCPT ); Wed, 30 Sep 2015 04:36:05 -0400 Received: from mga09.intel.com ([134.134.136.24]:13264 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753505AbbI3IgA (ORCPT ); Wed, 30 Sep 2015 04:36:00 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,611,1437462000"; d="scan'208";a="816126550" From: "Huang\, Ying" To: Jeff Layton Cc: kernel test robot , , LKML Subject: Re: [lkp] [nfsd] 4aac1bf05b: -2.9% fsmark.files_per_sec References: <87h9mfhwcj.fsf@yhuang-dev.intel.com> <20150929074151.0fe32fc9@tlielax.poochiereds.net> <87lhbokdqd.fsf@yhuang-dev.intel.com> <20150929200613.66c3ab4f@synchrony.poochiereds.net> Date: Wed, 30 Sep 2015 16:35:58 +0800 In-Reply-To: <20150929200613.66c3ab4f@synchrony.poochiereds.net> (Jeff Layton's message of "Tue, 29 Sep 2015 20:06:13 -0400") Message-ID: <871tdg718x.fsf@yhuang-dev.intel.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Jeff Layton writes: > On Wed, 30 Sep 2015 07:27:54 +0800 > "Huang\, Ying" wrote: > >> Jeff Layton writes: >> >> > On Mon, 28 Sep 2015 14:49:32 +0800 >> > kernel test robot wrote: >> > >> >> FYI, we noticed the below changes on >> >> >> >> ========================================================================================= >> >> tbox_group/testcase/rootfs/kconfig/compiler/cpufreq_governor/iterations/nr_threads/disk/fs/fs2/filesize/test_size/sync_method/nr_directories/nr_files_per_directory: >> >> lkp-ne04/fsmark/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/performance/1x/32t/1HDD/xfs/nfsv4/5K/400M/fsyncBeforeClose/16d/256fpd >> >> >> >> commit: >> >> cd2d35ff27c4fda9ba73b0aa84313e8e20ce4d2c >> >> 4aac1bf05b053a201a4b392dd9a684fb2b7e6103 >> >> >> > >> > A question... >> > >> > I think my tree should now contain a fix for this, but with a >> > performance regression like this it's difficult to know for sure. >> > >> > Is there some (automated) way to request that the KTR redo this test? >> > If not, will I get a note saying "problem seems to now be fixed" or do >> > I just take a lack of further emails from the KTR about this as a sign >> > that it's resolved? >> >> Can you provide the branch name and commit ID for your tree with fix? I >> can confirm whether it is fixed for you. >> > Sure: > > git://git.samba.org/jlayton/linux.git nfsd-4.4 > > The tip commit is ed3d7c1e01a76f5ecc7444067704a82af4c2f76e. > It seems that the regression is fixed at that commit. Thanks! ========================================================================================= tbox_group/testcase/rootfs/kconfig/compiler/cpufreq_governor/iterations/nr_threads/disk/fs/fs2/filesize/test_size/sync_method/nr_directories/nr_files_per_directory: lkp-ne04/fsmark/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/performance/1x/32t/1HDD/xfs/nfsv4/5K/400M/fsyncBeforeClose/16d/256fpd commit: cd2d35ff27c4fda9ba73b0aa84313e8e20ce4d2c 4aac1bf05b053a201a4b392dd9a684fb2b7e6103 ed3d7c1e01a76f5ecc7444067704a82af4c2f76e cd2d35ff27c4fda9 4aac1bf05b053a201a4b392dd9 ed3d7c1e01a76f5ecc74440677 ---------------- -------------------------- -------------------------- %stddev %change %stddev %change %stddev \ | \ | \ 14415356 ± 0% +2.6% 14788625 ± 1% +4.1% 15008301 ± 0% fsmark.app_overhead 441.60 ± 0% -2.9% 428.80 ± 0% -0.4% 439.68 ± 0% fsmark.files_per_sec 185.78 ± 0% +2.9% 191.26 ± 0% +0.3% 186.37 ± 0% fsmark.time.elapsed_time 185.78 ± 0% +2.9% 191.26 ± 0% +0.3% 186.37 ± 0% fsmark.time.elapsed_time.max 97472 ± 0% -2.8% 94713 ± 0% -0.8% 96657 ± 0% fsmark.time.involuntary_context_switches Best Regards, Huang, Ying