From mboxrd@z Thu Jan 1 00:00:00 1970 From: Quentin Perret Subject: Re: [RFC/RFT,v7] cpuidle: New timer events oriented governor for tickless systems Date: Fri, 7 Dec 2018 09:37:53 +0000 Message-ID: <20181207093751.io5hhmg53camwpzh@queper01-lin> References: <2047881.s5VBHReNGT@aspire.rjw.lan> <20181207075840.5881-1-hu1.chen@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20181207075840.5881-1-hu1.chen@intel.com> Sender: linux-kernel-owner@vger.kernel.org To: "Chen, Hu" Cc: rjw@rjwysocki.net, Daniel Lezcano , linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org List-Id: linux-pm@vger.kernel.org Hi Chen, On Friday 07 Dec 2018 at 15:58:35 (+0800), Chen, Hu wrote: > From: Chen Hu > > Hi Rafael, > > I run several popular Android performance benchmarks on teov7, using kernel > 4.19.0 as my baseline because I happen to work on it. To backport teov7 to > kernel 4.19.0, I also backport patch 5f26bdc: "cpuidle: menu: Fix wakeup > statistics updates for polling state". The teov7 doesn't show regressions on > such perf KPIs. > > Compare "4.19 + 5f26bdc" and "4.19 + 5f26bdc + teov7" on Android with Intel > Apollo Lake SoC: > > Test Case Diff after appling teov7 > Antutu_6 0.51% > GFX5_openGL_Car_Chase 0.43% > GFX5_openGL_Car_Chase_offscreen 0.25% > GFX5_openGL_Manhattan31 0.75% > GFX5_openGL_Manhattan31_1080_offscreen -0.10% > Geekbench3.3 -0.13% > H264_1080P_60FPS 0.00% > H264_2160P_60FPS 0.00% > H265_2K_10bit 0.00% > H265_2K_8bit 0.00% > Resume_time 1.31% > full_boot -0.39% That's really nice that you guys are able to get good test results on Android 4.19 that early after the release :-) Do you happen to run interactive use-cases as well ? I think Jankbench is one of the workload most folk care about for example. Also, did you manage to measure energy numbers for the above tests ? FWIW, I'd like to give a go to TEO on an Arm-based setup when I can. Thanks, Quentin