From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932217Ab3LDL0J (ORCPT ); Wed, 4 Dec 2013 06:26:09 -0500 Received: from mail-pd0-f177.google.com ([209.85.192.177]:33033 "EHLO mail-pd0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755595Ab3LDL0H (ORCPT ); Wed, 4 Dec 2013 06:26:07 -0500 Message-ID: <529F1111.2010808@linaro.org> Date: Wed, 04 Dec 2013 19:25:05 +0800 From: Alex Shi User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.0 MIME-Version: 1.0 To: Yuanhan Liu CC: mingo@redhat.com, peterz@infradead.org, morten.rasmussen@arm.com, vincent.guittot@linaro.org, daniel.lezcano@linaro.org, fweisbec@gmail.com, linux@arm.linux.org.uk, tony.luck@intel.com, fenghua.yu@intel.com, tglx@linutronix.de, akpm@linux-foundation.org, arjan@linux.intel.com, pjt@google.com, fengguang.wu@intel.com, james.hogan@imgtec.com, jason.low2@hp.com, gregkh@linuxfoundation.org, hanjun.guo@linaro.org, linux-kernel@vger.kernel.org, Huang Ying Subject: Re: [PATCH 4/4] sched: bias to target cpu load to reduce task moving References: <1386061556-28233-1-git-send-email-alex.shi@linaro.org> <1386061556-28233-5-git-send-email-alex.shi@linaro.org> <20131204090615.GA5135@yliu-dev.sh.intel.com> In-Reply-To: <20131204090615.GA5135@yliu-dev.sh.intel.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > We obsevered 150% performance gain with vm-scalability/300s-mmap-pread-seq > testcase with this patch applied. Here is a list of changes we got so far: > > testbox : brickland got some explain of brickland on wiki: High-end server platform based on the Ivy Bridge-EX processor > testcase: vm-scalability/300s-mmap-pread-seq https://github.com/aristeu/vm-scalability Thanks a lot for testing! :) Do you have data of base upstream commit? > > > f1b6442c7dd12802e622 d70495ef86f397816d73 > (parent commit) (this commit) > ------------------------ ------------------------ > 26393249.80 +150.9% 66223933.60 vm-scalability.throughput > > 225.12 -49.9% 112.75 time.elapsed_time > 36333.40 -90.7% 3392.20 vmstat.system.cs > 2.40 +375.0% 11.40 vmstat.cpu.id > 3770081.60 -97.7% 87673.40 time.major_page_faults > 3975276.20 -97.0% 117409.60 time.voluntary_context_switches > 3.05 +301.7% 12.24 iostat.cpu.idle > 21118.41 -70.3% 6277.19 time.system_time > 18.40 +130.4% 42.40 vmstat.cpu.us > 77.00 -41.3% 45.20 vmstat.cpu.sy > 47459.60 -31.3% 32592.20 vmstat.system.in > 82435.40 -12.1% 72443.60 time.involuntary_context_switches > 5128.13 +14.0% 5848.30 time.user_time > 11656.20 -7.8% 10745.60 time.percent_of_cpu_this_job_got > 1069997484.80 +0.3% 1073679919.00 time.minor_page_faults > -- Thanks Alex