From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753559AbcE3CTq (ORCPT ); Sun, 29 May 2016 22:19:46 -0400 Received: from mga01.intel.com ([192.55.52.88]:40062 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753114AbcE3CTo (ORCPT ); Sun, 29 May 2016 22:19:44 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.26,387,1459839600"; d="scan'208";a="112604664" Date: Mon, 30 May 2016 10:17:58 +0800 From: kernel test robot To: Alexander Potapenko Cc: Linus Torvalds , Christoph Lameter , Pekka Enberg , David Rientjes , Joonsoo Kim , Andrey Konovalov , Dmitry Vyukov , Andrey Ryabinin , Steven Rostedt , Konstantin Serebryany , Dmitry Chernenkov , Andrew Morton , LKML , lkp@01.org Subject: [lkp] [mm] 55834c5909: boot-slabinfo.num_objs +31.9% increasement Message-ID: <20160530021758.GG1689@yexl-desktop> Reply-To: kernel test robot MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit User-Agent: Heirloom mailx 12.5 6/20/10 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org FYI, we noticed boot-slabinfo.num_objs +31.9% increasement due to commit: commit 55834c59098d0c5a97b0f3247e55832b67facdcf ("mm: kasan: initial memory quarantine implementation") https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master in testcase: boot on test machine: vm-lkp-wsx03-2G: 2 threads qemu-system-x86_64 -enable-kvm -cpu host with 2G memory with following parameters: sleep=1 Details are as below: --------------------------------------------------------------------------------------------------> ========================================================================================= compiler/kconfig/rootfs/sleep/tbox_group/testcase: gcc-6/x86_64-randconfig-s4-05280557/debian-x86_64-2015-02-07.cgz/1/vm-lkp-wsx03-2G/boot commit: b8f1a75d61d8405a753380c6fb17ba84a5603cd4 55834c59098d0c5a97b0f3247e55832b67facdcf b8f1a75d61d8405a 55834c59098d0c5a97b0f3247e ---------------- -------------------------- %stddev %change %stddev \ | \ 165450 ± 0% +31.9% 218176 ± 1% boot-slabinfo.num_objs 19095 ± 5% +104.3% 39013 ± 3% boot-slabinfo.num_pages 107.27 ± 2% +14.1% 122.43 ± 13% boot-time.boot 97.13 ± 1% +4.3% 101.31 ± 1% boot-time.idle 1105076 ± 0% -7.2% 1025056 ± 0% boot-meminfo.MemFree 36269 ± 12% +215.7% 114517 ± 5% boot-meminfo.SUnreclaim 76469 ± 5% +104.5% 156343 ± 4% boot-meminfo.Slab boot-slabinfo.num_objs 230000 ++-----------------------------------------------------------------+ | O O | 220000 ++O O O OO OO O O OO OO | OO O OOOO O OOOOOOO O O OO O | 210000 ++ | | | 200000 ++ | | | 190000 ++ | | | 180000 ++ | | | 170000 ++ | ******************************************************************** 160000 ++-----------------------------------------------------------------+ boot-slabinfo.num_pages 45000 ++-------------O----------------------------------------------------+ | O O OO O O O O OOO | 40000 +O OOO OO OO O O | O OO O O O O O OO O O | | O O O | 35000 ++ | | | 30000 ++ | | | 25000 ++ | | | | * * * 20000 +* * * ** * * * * * * ** **** ** * * * * * * :: * *** *| * * ** ** * * ** *** * ** *** * * * * * ** *** * ** ** ** * * | 15000 ++------------------------------------------------------------------+ [*] bisect-good sample [O] bisect-bad sample 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