Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759981AbaGDDp7 (ORCPT ); Thu, 3 Jul 2014 23:45:59 -0400 Received: from mga02.intel.com ([134.134.136.20]:32420 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752250AbaGDDpo (ORCPT ); Thu, 3 Jul 2014 23:45:44 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.01,598,1400050800"; d="scan'208";a="538647283" Message-ID: <53B6235B.4050205@intel.com> Date: Fri, 04 Jul 2014 11:45:31 +0800 From: Jet Chen User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 MIME-Version: 1.0 To: Aaron Tomlin CC: Fengguang Wu , Dave Hansen , Linux Kernel Mailing List , LKP Subject: [kernel/watchdog.c] ed235875e2c: -14.2% will-it-scale.scalability Content-Type: multipart/mixed; boundary="------------090705020802020808050504" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is a multi-part message in MIME format. --------------090705020802020808050504 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Hi Aaron, FYI, we noticed the below changes on commit ed235875e2ca983197831337a986f0517074e1a0 ("kernel/watchdog.c: print traces for all cpus on lockup detection") test case: lkp-snb01/will-it-scale/signal1 f3aca3d09525f87 ed235875e2ca983197831337a --------------- ------------------------- 0.12 ~ 0% -14.2% 0.10 ~ 0% TOTAL will-it-scale.scalability 506146 ~ 0% -4.4% 484004 ~ 0% TOTAL will-it-scale.per_process_ops 12193 ~ 4% +12.6% 13726 ~ 6% TOTAL slabinfo.kmalloc-256.active_objs 12921 ~ 4% +12.3% 14516 ~ 5% TOTAL slabinfo.kmalloc-256.num_objs 123094 ~ 3% -6.5% 115117 ~ 3% TOTAL meminfo.Committed_AS Legend: ~XX% - stddev percent [+-]XX% - change percent will-it-scale.per_process_ops 515000 ++-----------------------------------------------------------------+ | .*.*.*.*. .* | 510000 *+* *.*.* + .*. *. | 505000 ++ * *.*.*.*. .* .*.*.*. .*.*.*. + *.*.*.*.*.* | * * * *.* | 500000 ++ | | | 495000 ++ | | | 490000 ++ | 485000 ++ O O O O O O | | O O O O O O O O O O | 480000 O+O O O O O | | | 475000 ++-----------------------------------------------------------------+ [*] 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, Jet --------------090705020802020808050504 Content-Type: text/plain; charset=UTF-8; name="reproduce" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="reproduce" echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu10/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu11/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu12/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu13/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu14/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu15/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu16/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu17/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu18/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu19/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu2/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu20/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu21/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu22/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu23/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu24/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu25/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu26/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu27/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu28/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu29/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu30/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu31/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu4/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu5/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu6/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu7/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu8/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu9/cpufreq/scaling_governor ./runtest.py signal1 25 1 8 16 24 32 --------------090705020802020808050504-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/