Received: by 2002:ac0:a5a7:0:0:0:0:0 with SMTP id m36-v6csp3686643imm; Mon, 20 Aug 2018 03:02:53 -0700 (PDT) X-Google-Smtp-Source: AA+uWPxSWDMhE0AHbzkneWZG2ALyluNeCzeV9efpo5lixG6VStJLIqvqL4XmGx/DGmeDx4aNy0Jk X-Received: by 2002:a65:5245:: with SMTP id q5-v6mr41874557pgp.67.1534759373571; Mon, 20 Aug 2018 03:02:53 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1534759373; cv=none; d=google.com; s=arc-20160816; b=AxTM52xwnFZ0mgbib2jVHGEZpNH7+omzqmQUq8ZbCsLFOiLh/n+tfMQ0WXFBQqNxqV +6GdQnKe3VEzfUC60SEySeBmbXyuhSc6m221Yakx2Xq5MYbLyRykvzKwWx35X++ip2Uz WeAW/w7/L8QD1/+HXUmGNO7GQFuZgwyMRz0AL/w2PF1OArxJMMja+VAywYlBcZF3jx5c TlUHMa9ruVk3mJSj93hnmhsRlqPnTYllT91X7Wdk7UDIlSqUwyIgeBwKBC7NPIphyYne GuJxiPNdTc3wb+NpZxDFUCcik856H5cEEJSXvpXjFzXjTHzv+uWn99dToI6MdDUGKKOM Rq5Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:references:cc:to:from:subject:arc-authentication-results; bh=Ioo7bsHl/E+Wysg25ponTNyHf8eZ6MLluGuPxE6DvU4=; b=PX5kBNfcB2Ujat7q8tUT0uzU7IRr6QmMQ6qLm5Kc5t/RqWe1/5sidgqDUGqJL0eixk 5hyB9RDO9+bO3Fw8EHY9vf/RCQtzXUJqIu+RNwd353xOFVAsvCqG2+04iO5mi0JfTpLE m7/gJykwEFDcWNAzqlhjnGSBDk3GRfjj4kUWemJ5MEs/3c8+YJpSm8Ae3otEvNE7KaM9 qC751hmZAUSlk3GuE00oCztuPAZRyOyfbIxWsq1ueVhCnjZ8b1bDC4Mhms3klOfzM3CG W2+VqUk3lucR/tBqd+GcmJHJ8ioTwkrqyHm5TfU9QErhcYFAMJmPr9ub+EFwp9NDPp+z glUg== 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 66-v6si9468024plb.428.2018.08.20.03.02.38; Mon, 20 Aug 2018 03:02:53 -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 S1726585AbeHTNQM (ORCPT + 99 others); Mon, 20 Aug 2018 09:16:12 -0400 Received: from foss.arm.com ([217.140.101.70]:35398 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725948AbeHTNQM (ORCPT ); Mon, 20 Aug 2018 09:16:12 -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 C1FC080D; Mon, 20 Aug 2018 03:01:14 -0700 (PDT) Received: from [0.0.0.0] (e107985-lin.emea.arm.com [10.4.12.239]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 591183F2EA; Mon, 20 Aug 2018 03:01:11 -0700 (PDT) Subject: Re: [PATCH v3 09/14] sched/core: uclamp: propagate parent clamps From: Dietmar Eggemann To: Patrick Bellasi Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Ingo Molnar , Peter Zijlstra , Tejun Heo , "Rafael J . Wysocki" , Viresh Kumar , Vincent Guittot , Paul Turner , Morten Rasmussen , Juri Lelli , Todd Kjos , Joel Fernandes , Steve Muckle , Suren Baghdasaryan References: <20180806163946.28380-1-patrick.bellasi@arm.com> <20180806163946.28380-10-patrick.bellasi@arm.com> <804c7937-2c47-0781-9c53-a8ef8eb04530@arm.com> <20180817144540.GL2960@e110439-lin> Message-ID: <0a26a0de-f9e6-ef77-ceac-eb25bbf01664@arm.com> Date: Mon, 20 Aug 2018 12:01:09 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 08/17/2018 05:50 PM, Dietmar Eggemann wrote: > On 08/17/2018 04:45 PM, Patrick Bellasi wrote: >> On 17-Aug 15:43, Dietmar Eggemann wrote: >>> On 08/06/2018 06:39 PM, Patrick Bellasi wrote: [...] >> AFAIK the default hierarcy (cgroups v2) has a much more stricy set of >> requirements for the "delegation model". > > Could be ... I guess I have to study this more. So I see that this idea with the .effective files is used in Waiman's new cpuset cgroupv2 controller proposal. The cpu controller with you util clamp extension has to be usable under cgroupv2 and cgroupv1, I assume? [...]