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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 96B38ECAAA1 for ; Fri, 28 Oct 2022 07:23:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229510AbiJ1HXq (ORCPT ); Fri, 28 Oct 2022 03:23:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44546 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229473AbiJ1HXp (ORCPT ); Fri, 28 Oct 2022 03:23:45 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id F41DD1A9124; Fri, 28 Oct 2022 00:23:44 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 0BCBF1FB; Fri, 28 Oct 2022 00:23:51 -0700 (PDT) Received: from [10.57.1.225] (unknown [10.57.1.225]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 5D0B63F445; Fri, 28 Oct 2022 00:23:43 -0700 (PDT) Message-ID: <63a63f5e-846a-3235-56f9-3cc9b5c2dd4d@arm.com> Date: Fri, 28 Oct 2022 08:23:33 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: [RFC PATCH v2 0/1] cpuidle: teo: Introduce optional util-awareness Content-Language: en-US To: Daniel Lezcano Cc: Dietmar.Eggemann@arm.com, dsmythies@telus.net, Kajetan Puchalski , yu.chen.surf@gmail.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, "Rafael J. Wysocki" References: <20221003144914.160547-1-kajetan.puchalski@arm.com> <71438330-dbfe-a10c-f289-24ba25c0d55f@linaro.org> <2e02056b-24ef-6262-03bd-63fd6f3a5754@arm.com> From: Lukasz Luba In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org On 10/28/22 08:11, Daniel Lezcano wrote: > On 28/10/2022 09:08, Lukasz Luba wrote: > > [ ... ] > >>> [1] Dynamic workload characterization for power efficient scheduling >>> on CMP systems : https://cseweb.ucsd.edu//~tullsen/islped10.pdf >>> >>> [2] >>> https://git.linaro.org/people/daniel.lezcano/linux.git/commit/?h=cpuidle/mobile-governor-v5.1&id=de1edb05e3c342f0738b414aa84263d6555b7462 >>> >>> >>> >> >> Thanks Daniel! I forgot about your work in this area. As I have >> responded in some other email in this thread, we might start >> from a new small governor and than others can contribute. >> >> Even this small governor that Kajetan showed me performs really >> good on pixel6. > > Do you have others ARM64 platforms to compare with ? > Yes we have, also some older platforms (~10years now, which would be nice to check how they would perform). We also have a big arm64 server to give it a try there. So those results will be available with the new patch when we decide to go the new governor.