From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_NEOMUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 74D0DC07E85 for ; Fri, 7 Dec 2018 09:38:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3448520989 for ; Fri, 7 Dec 2018 09:38:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3448520989 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726019AbeLGJiC (ORCPT ); Fri, 7 Dec 2018 04:38:02 -0500 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:40298 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725976AbeLGJiB (ORCPT ); Fri, 7 Dec 2018 04:38:01 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 037B51596; Fri, 7 Dec 2018 01:38:01 -0800 (PST) Received: from queper01-lin (queper01-lin.cambridge.arm.com [10.1.195.48]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id DFBAE3F59C; Fri, 7 Dec 2018 01:37:59 -0800 (PST) Date: Fri, 7 Dec 2018 09:37:53 +0000 From: Quentin Perret To: "Chen, Hu" Cc: rjw@rjwysocki.net, Daniel Lezcano , linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: Re: [RFC/RFT,v7] cpuidle: New timer events oriented governor for tickless systems 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 Content-Disposition: inline In-Reply-To: <20181207075840.5881-1-hu1.chen@intel.com> User-Agent: NeoMutt/20171215 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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