From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Chen, Hu" Subject: Re: [RFC/RFT,v7] cpuidle: New timer events oriented governor for tickless systems Date: Fri, 7 Dec 2018 15:58:35 +0800 Message-ID: <20181207075840.5881-1-hu1.chen@intel.com> References: <2047881.s5VBHReNGT@aspire.rjw.lan> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <2047881.s5VBHReNGT@aspire.rjw.lan> Sender: linux-kernel-owner@vger.kernel.org To: rjw@rjwysocki.net Cc: Chen Hu , Daniel Lezcano , linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org List-Id: linux-pm@vger.kernel.org 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% Thanks Chen Hu