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 2C3F4C2D0D0 for ; Mon, 23 Dec 2019 14:40:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0C202206B7 for ; Mon, 23 Dec 2019 14:40:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726943AbfLWOkt (ORCPT ); Mon, 23 Dec 2019 09:40:49 -0500 Received: from foss.arm.com ([217.140.110.172]:46622 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726733AbfLWOkt (ORCPT ); Mon, 23 Dec 2019 09:40:49 -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 E2EDA1FB; Mon, 23 Dec 2019 06:40:48 -0800 (PST) Received: from e107158-lin.cambridge.arm.com (e107158-lin.cambridge.arm.com [10.1.195.21]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 7C2493F534; Mon, 23 Dec 2019 06:40:46 -0800 (PST) Date: Mon, 23 Dec 2019 14:40:44 +0000 From: Qais Yousef To: Doug Smythies Cc: 'Giovanni Gherdovich' , x86@kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, 'Mel Gorman' , 'Matt Fleming' , 'Viresh Kumar' , 'Juri Lelli' , 'Paul Turner' , 'Peter Zijlstra' , 'Vincent Guittot' , 'Quentin Perret' , 'Dietmar Eggemann' , 'Srinivas Pandruvada' , 'Thomas Gleixner' , 'Ingo Molnar' , 'Borislav Petkov' , 'Len Brown' , "'Rafael J . Wysocki'" Subject: Re: [PATCH v4 1/6] x86,sched: Add support for frequency invariance Message-ID: <20191223144043.ticfxfgbolsqk74i@e107158-lin.cambridge.arm.com> References: <20191113124654.18122-2-ggherdovich@suse.cz> <000001d5a29b$c944fd70$5bcef850$@net> <1574697961.16378.5.camel@suse.cz> <000801d5a41e$a7fce2c0$f7f6a840$@net> <1574781600.7677.2.camel@suse.cz> <001d01d5a4f4$d96b21b0$8c416510$@net> <003d01d5a63d$f6ab3950$e401abf0$@net> <20191219104813.6fr34qavpaplecoz@e107158-lin> <000701d5b965$361b6c60$a2524520$@net> <20191223140743.o2wfoqtf56g4yrk5@e107158-lin.cambridge.arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20191223140743.o2wfoqtf56g4yrk5@e107158-lin.cambridge.arm.com> User-Agent: NeoMutt/20171215 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/23/19 14:07, Qais Yousef wrote: > > Re-boot to the nocgv1 (stock + cgroup_no_v1=all) kernel. > > set the schedutil governor. > > launch test 2 and related monitoring tools. > > verify performance governor like behavior. > > So as stated above, by default uclamp_{min, max} = (0, 1024). So it wouldn't > act as performance governor by default unless you explicitly write 1024 to > uclamp.min. > > Let me go find Ubuntu mainline tree to see if they applied anything extra in > there. If they modified the default behavior that could explain what you see. Actually I see what you were saying now that you copy the config. So I think I misunderstood and you are running Linus' 5.5-rc2 + Ubuntu PPA config. I'm trying to to reproduce the issue at my end. Cheers -- Qais Yousef