Received: by 2002:ac0:a582:0:0:0:0:0 with SMTP id m2-v6csp814978imm; Thu, 4 Oct 2018 03:57:07 -0700 (PDT) X-Google-Smtp-Source: ACcGV61S+R74B6sRJvFzpPor8DOWr0NVNV6A+3ycEsUAS0FqPXQEmxwv44Ve06dTh3gE0HVBn/f4 X-Received: by 2002:a17:902:6184:: with SMTP id u4-v6mr5933465plj.121.1538650627378; Thu, 04 Oct 2018 03:57:07 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1538650627; cv=none; d=google.com; s=arc-20160816; b=ajX5by77dgBEvVx7I8fFL3C43EdCEhb/cD+dkq0Rk06KlIngM0E5RWyagE+zz4n0O6 YI1dTXbyl58w6yKqYu/Uu8hBlBSRJpDiKBPTOYSMNlfbmk9yTmLc6eM5T7QXk135XKAc SXF3U3Nl2kcrhUi/POauy09OQZvdCiJj1j83zeH4ixJonFPT6xQBOCs79gpdiWxusNbo wGC/EWF/NXq+e8XMIHx/Zxdm89pegMbgPUSLKYhbjor0EW0ngDhEQ3DHD9eSj9r0Zt5V MG3CWHihIadneCa8zxdXHrTdggjLPNhjL3ryZLZ03sQAhe9yLkaC1VNQQPzUF6cpvdZG vKdQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=rRJ/Th3Dfu07AIZ65Qs24EkA3QSBOWvCIdpjEP6WhjU=; b=hiMhzlqPO9Cu+80ADTt68Ne6+u/mxo8Qa4JoKuvbLlrx82yd+PfVMXQgXmXscWp2u2 q7Lbb58HrFIEL194yh3EAIGygInuj9sfuV8mjR6YKB3L8nzzFgIA+b9UVJYC0wWnrPPw v7g9i/VpabahqfCVMcplr3y21sdeps+HOm2DjmxZcNrlSfgG1wE4IokN0ZnLb/5K6i7A sAvFMHvd00cU2QGcvRYUr2rWYYK0/baC+BjqsEOz/uLy6QgGwaVgIzLLb5jgc3yw5nla Y/f9iMjPOLrHEc2j13+SypakOugMEccgMunnat1VCWVpmuKqg3ONzGBlZ3g8h/2C/gy3 B14Q== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 62-v6si4881856plc.96.2018.10.04.03.56.51; Thu, 04 Oct 2018 03:57:07 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727354AbeJDRr7 (ORCPT + 99 others); Thu, 4 Oct 2018 13:47:59 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:34430 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727109AbeJDRr6 (ORCPT ); Thu, 4 Oct 2018 13:47:58 -0400 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 8242F7A9; Thu, 4 Oct 2018 03:55:15 -0700 (PDT) Received: from queper01-lin (queper01-lin.Emea.Arm.com [10.4.13.27]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 64DA63F5D3; Thu, 4 Oct 2018 03:55:11 -0700 (PDT) Date: Thu, 4 Oct 2018 11:55:09 +0100 From: Quentin Perret To: Peter Zijlstra Cc: rjw@rjwysocki.net, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, gregkh@linuxfoundation.org, mingo@redhat.com, dietmar.eggemann@arm.com, morten.rasmussen@arm.com, chris.redpath@arm.com, patrick.bellasi@arm.com, valentin.schneider@arm.com, vincent.guittot@linaro.org, thara.gopinath@linaro.org, viresh.kumar@linaro.org, tkjos@google.com, joel@joelfernandes.org, smuckle@google.com, adharmap@codeaurora.org, skannan@codeaurora.org, pkondeti@codeaurora.org, juri.lelli@redhat.com, edubezval@gmail.com, srinivas.pandruvada@linux.intel.com, currojerez@riseup.net, javi.merino@kernel.org Subject: Re: [PATCH v7 12/14] sched/fair: Select an energy-efficient CPU on task wake-up Message-ID: <20181004105507.ordjpa3hsb6zoelc@queper01-lin> References: <20180912091309.7551-1-quentin.perret@arm.com> <20180912091309.7551-13-quentin.perret@arm.com> <20181004094412.GD19252@hirez.programming.kicks-ass.net> <20181004102722.izp7y42cvayq4pqg@queper01-lin> <20181004104107.GN19272@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181004104107.GN19272@hirez.programming.kicks-ass.net> User-Agent: NeoMutt/20171215 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thursday 04 Oct 2018 at 12:41:07 (+0200), Peter Zijlstra wrote: > Not sure, see what it looks like ;-) My main concern here was to get rid > of that giant blob in select_task_rq_fair(). OK, got it. I'll probably just move the checks into the function and merge that large comment into the already massive comment above find_energy_efficient_cpu() or something. We'll see :-) And do you actually care about the function name ? We've been using find_energy_efficient_cpu() for some time in Android now, so that's just slightly easier for us if that can be re-used. Not a big deal either, though. Thanks, Quentin