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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 D55ABC33CB2 for ; Wed, 29 Jan 2020 09:25:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AD97020716 for ; Wed, 29 Jan 2020 09:25:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726192AbgA2JZ6 (ORCPT ); Wed, 29 Jan 2020 04:25:58 -0500 Received: from foss.arm.com ([217.140.110.172]:38478 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726010AbgA2JZ6 (ORCPT ); Wed, 29 Jan 2020 04:25:58 -0500 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 087611FB; Wed, 29 Jan 2020 01:25:58 -0800 (PST) Received: from [10.0.2.15] (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id BBB513F52E; Wed, 29 Jan 2020 01:25:56 -0800 (PST) Subject: Re: [PATCH v3 1/3] sched/fair: Add asymmetric CPU capacity wakeup scan To: Pavan Kondeti Cc: linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, morten.rasmussen@arm.com, qperret@google.com, adharmap@codeaurora.org References: <20200126200934.18712-1-valentin.schneider@arm.com> <20200126200934.18712-2-valentin.schneider@arm.com> <20200128062245.GA27398@codeaurora.org> <1ed322d6-0325-ecac-cc68-326a14b8c1dd@arm.com> <20200129035258.GB27398@codeaurora.org> From: Valentin Schneider Message-ID: <7dd8b850-855c-29e2-8580-357cf1c8ce30@arm.com> Date: Wed, 29 Jan 2020 09:25:50 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <20200129035258.GB27398@codeaurora.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 29/01/2020 03:52, Pavan Kondeti wrote: >> No particular reason other than we didn't consider it, I think. I don't see >> any harm in folding it in, I'll do that for v4. I am curious however; are >> you folks making use of SCHED_IDLE? AFAIA Android isn't making use of it >> yet, though Viresh paved the way for that to happen. >> > > We are not using SCHED_IDLE in product setups. I am told Android may use it > for background tasks in future. I am not completely sure though. I asked it > because select_idle_cpu() is using it. > Fair enough! Thanks.