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=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_MUTT autolearn=unavailable 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 5D03FC28CC6 for ; Mon, 3 Jun 2019 12:29:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 372C127DD7 for ; Mon, 3 Jun 2019 12:29:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727427AbfFCM3h (ORCPT ); Mon, 3 Jun 2019 08:29:37 -0400 Received: from foss.arm.com ([217.140.101.70]:50214 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726137AbfFCM3h (ORCPT ); Mon, 3 Jun 2019 08:29:37 -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 C6E6C15A2; Mon, 3 Jun 2019 05:29:36 -0700 (PDT) Received: from darkstar (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 867063F5AF; Mon, 3 Jun 2019 05:29:32 -0700 (PDT) Date: Mon, 3 Jun 2019 13:29:29 +0100 From: Patrick Bellasi To: Tejun Heo , Peter Zijlstra Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-api@vger.kernel.org, Ingo Molnar , "Rafael J . Wysocki" , Vincent Guittot , Viresh Kumar , Paul Turner , Quentin Perret , Dietmar Eggemann , Morten Rasmussen , Juri Lelli , Todd Kjos , Joel Fernandes , Steve Muckle , Suren Baghdasaryan Subject: Re: [PATCH v9 12/16] sched/core: uclamp: Extend CPU's cgroup controller Message-ID: <20190603122929.GC19426@darkstar> References: <20190515094459.10317-1-patrick.bellasi@arm.com> <20190515094459.10317-13-patrick.bellasi@arm.com> <20190531153545.GE374014@devbig004.ftw2.facebook.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190531153545.GE374014@devbig004.ftw2.facebook.com> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 31-May 08:35, Tejun Heo wrote: > Hello, Patrick. > > On Wed, May 15, 2019 at 10:44:55AM +0100, Patrick Bellasi wrote: [...] > For proportions (as opposed to weights), we use percentage rational > numbers - e.g. 38.44 for 38.44%. I have parser and doc update commits > pending. I'll put them on cgroup/for-5.3. That's a point worth discussing with Peter, we already changed one time from percentages to 1024 scale. Utilization clamps are expressed as percentages by definition, they are just expressed in a convenient 1024 scale which should not be alien to people using those knobs. If we wanna use a "more specific" name like uclamp.{min,max} then we should probably also accept to use a "more specific" metric, don't we? I personally like the [0..1024] range, but I guess that's really up to you and Peter to agree upon. > Thanks. > > -- > tejun Cheers, Patrick -- #include Patrick Bellasi