From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752251AbaAQQh5 (ORCPT ); Fri, 17 Jan 2014 11:37:57 -0500 Received: from mail-wg0-f46.google.com ([74.125.82.46]:35434 "EHLO mail-wg0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751248AbaAQQhw (ORCPT ); Fri, 17 Jan 2014 11:37:52 -0500 Message-ID: <52D95C5E.4070209@linaro.org> Date: Fri, 17 Jan 2014 17:37:50 +0100 From: Daniel Lezcano User-Agent: Mozilla/5.0 (X11; Linux i686; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: Peter Zijlstra CC: mingo@kernel.org, linux-kernel@vger.kernel.org, linaro-kernel@lists.linaro.org, alex.shi@linaro.org Subject: Re: [PATCH 4/4] sched: Idle task shortcut optimization References: <1389949444-14821-1-git-send-email-daniel.lezcano@linaro.org> <1389949444-14821-4-git-send-email-daniel.lezcano@linaro.org> <20140117142644.GI11314@laptop.programming.kicks-ass.net> <52D94705.1000407@linaro.org> <20140117152310.GK11314@laptop.programming.kicks-ass.net> <52D94B95.2060704@linaro.org> <20140117153323.GM11314@laptop.programming.kicks-ass.net> In-Reply-To: <20140117153323.GM11314@laptop.programming.kicks-ass.net> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/17/2014 04:33 PM, Peter Zijlstra wrote: > On Fri, Jan 17, 2014 at 04:26:13PM +0100, Daniel Lezcano wrote: >> >> Ah, ok. Let me try it. >> > > http://programming.kicks-ass.net/sekrit/patches.tar.bz2 > > has a queue that applies to tip/master. > > The patches as on lkml need a little help in applying. > > They've not been near a compiler yet though :/ > Here are the results: Col1 : tip/sched/core Col2 : the patchset above Col3 : the patchset above + idle task shortcut hackbench -s 4096 -l 1000 -g 10 -f 40 -T 33.306 32.720 31.902 32.344 32.139 32.214 33.342 33.281 33.056 33.319 33.421 31.789 32.325 32.540 31.941 33.701 32.978 32.229 34.981 32.418 30.218 32.379 31.656 31.717 32.135 32.241 32.812 32.531 32.790 31.967 avg: 33.036 32.618 31.984 hackbench -p -s 4096 -l 1000 -g 10 -f 40 27.595 27.601 26.331 25.192 29.336 30.222 26.057 28.579 28.351 28.397 29.419 28.554 27.628 25.045 30.470 28.976 28.027 29.823 28.764 29.361 26.902 27.632 30.101 26.285 29.129 29.248 26.975 26.020 25.047 29.324 avg: 27.539 28.176 28.324 hackbench -P -s 4096 -l 1000 -g 10 -f 40 32.788 32.057 30.691 33.158 33.251 34.315 32.713 33.076 32.880 32.488 32.878 32.792 31.240 33.003 32.958 32.493 33.096 32.244 33.940 33.660 31.550 34.733 33.777 31.829 32.598 34.117 33.714 34.091 33.196 31.336 avg: 33.024 33.211 32.431 -- Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog