From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756838AbcFABD1 (ORCPT ); Tue, 31 May 2016 21:03:27 -0400 Received: from mga14.intel.com ([192.55.52.115]:30191 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750750AbcFABD0 (ORCPT ); Tue, 31 May 2016 21:03:26 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.26,398,1459839600"; d="scan'208";a="988479971" From: "Huang\, Ying" To: Al Viro Cc: kernel test robot , , Linus Torvalds , LKML Subject: Re: [LKP] [lkp] [dcache_{readdir, dir_lseek}() users] 4e82901cd6: reaim.jobs_per_min -49.1% regression References: <20160531081515.GC11635@yexl-desktop> <20160531134011.GB14480@ZenIV.linux.org.uk> Date: Wed, 01 Jun 2016 09:03:23 +0800 In-Reply-To: <20160531134011.GB14480@ZenIV.linux.org.uk> (Al Viro's message of "Tue, 31 May 2016 14:40:11 +0100") Message-ID: <87bn3laffo.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=ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Al Viro writes: > On Tue, May 31, 2016 at 04:15:15PM +0800, kernel test robot wrote: >> >> >> FYI, we noticed reaim.jobs_per_min -49.1% regression due to commit: >> >> commit 4e82901cd6d1af21ae232ae835c36d8230c809e8 ("dcache_{readdir,dir_lseek}() users: switch to ->iterate_shared") >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >> >> in testcase: reaim >> on test machine: lkp-hsx04: 144 threads Brickland Haswell-EX with 512G memory >> with following parameters: cpufreq_governor=performance/iterations=4/nr_task=1600%/test=fserver > > [snip] > > Is there any way to get the profiles? Sorry, our perf-profile support is broken after upgrading perf-profile recently. We will restore it ASAP and send back to you the perf profile results. Best Regards, Huang, Ying