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=-3.5 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 CB71DC55179 for ; Fri, 6 Nov 2020 01:36:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4724E20782 for ; Fri, 6 Nov 2020 01:36:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gmx.net header.i=@gmx.net header.b="C4m9Kuy+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732220AbgKFBgQ (ORCPT ); Thu, 5 Nov 2020 20:36:16 -0500 Received: from mout.gmx.net ([212.227.15.15]:46015 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730246AbgKFBgP (ORCPT ); Thu, 5 Nov 2020 20:36:15 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1604626566; bh=1VYn4LRQLmLDYGQ9PCTWZEHah9Il9YgyQ6VlLlMv9dg=; h=X-UI-Sender-Class:Subject:From:To:Cc:Date:In-Reply-To:References; b=C4m9Kuy+Hs0DWMb/PNCYtFtHTveeulk/NbTgY0Y1yXliEp+kaPKWAiWhUya5vKNfG HIqbYG4sHRFi500jNXkoO/TxuLg14NYEbrqDMwWkrGo70fwFKB8CBSz/zbPL8DYI3B 0RbxLosdLDZbjWdsT52M8CapTFy1r2lCHL1hNg48= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from homer.fritz.box ([188.174.240.195]) by mail.gmx.com (mrgmx005 [212.227.17.190]) with ESMTPSA (Nemesis) id 1Mwfai-1kQLCp4Bv0-00y6Nh; Fri, 06 Nov 2020 02:36:06 +0100 Message-ID: Subject: Re: v5.8+ powersave governor breakage? From: Mike Galbraith To: "Rafael J. Wysocki" Cc: lkml , Peter Zijlstra , Linux PM Date: Fri, 06 Nov 2020 02:36:05 +0100 In-Reply-To: <2454708.LCoKzY5ALV@kreacher> References: <580d12716f6363d7404805fd4bc50e2d5ab459b0.camel@gmx.de> <2948497.iyA2Nh11HS@kreacher> <76661fbdbd31368c0a06cd58296f5ec12817e33c.camel@gmx.de> <2454708.LCoKzY5ALV@kreacher> Content-Type: text/plain; charset="ISO-8859-15" User-Agent: Evolution 3.34.4 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:imsqUelnGyTysy2GzvyZURlA+VYsEfiR1F7XxI3it1gwjz1gh/8 e/vVV0xoV1vqUKnoipNnEr4r9VoQeWhFNvWLdmMG6/GVtMXFse8+MjzU740UwLUwY5Birvf EcuX9cxu3UfHFyvNT+dWeuHC0cNqXVBNsIggpYyAx1d+rrVqWLClLfIC+chVVmO9VwRLFjR T9WA049YQ/UXV46uFbu3A== X-UI-Out-Filterresults: notjunk:1;V03:K0:wvXDe0cf3NA=:ho1bEPEqPN4r3GhQTaRRTz 0VFwZL/hTlwuQc0sO6fvMocPNDKf46XlYJJAnNYk6CpQ0sXXVC00SKMCDT5QQWq4qQd/j5OnI J00tGkuznKkFObSLecHJWDsJLXwjN50i+kp6mdbtlBEzYGQ5s7pnp8/rylzeqqPKs4bXVh5TH MsoXX+H6lNyIUF5wJS2vo+SZj1mljs5rqWNFaivJt7ngxvVmMETaUKejpH0TrR5ZQwY9jDqiR C7ogXEGzJaQM7ejL0v5QpPxoKBejkbMbjjCwjtd7QekjwzQ4qwpctAjQ9fz9BqhPaY1GCz706 0AtNop2rHAKeW/13jL7mFJ1N7NFgU7H6s1Vva3tZKz0wSntUE8Am+LeJo4QGdKMFP5qNsgzCv dZjlV6a7vasO+lpj4TMrsc2lqQJwbfQ8lafvKaTgaUhbYvrcPNT3/hzazJgv9WtN+iAtf75Ng MxAqnUVLWv1Rdw7K4VULi7wpXsNt8nv+y9QagYn6vhguNVVog7cFobJi7T8mm/vE055elQ5IZ ZEeOUpfF2Pj19SuSyLF4W+8mROf+CHMnwvbvtJ4UeNicrUCH0pNGOV0Xr+R4He4dV8sy3+29m vp2wB/12NbsjcIf9kc+Mq7QXnckdBtKQijMNw1+P6kOHdtLiqEINPCHLumoIaDUToep++9xNV 7GgxgmAYeYY+fGeVmPTTuTk8VZfPxDr8bH5Hd1PWUarJChn0X/EPsbNA1ry3ZrYZhCaiGP3wo 8FMfKUmqMZI0ZLdr6D7Y1o4gT4dYJ99QgqWmSV2+3ouh2s46/1PaOYtA6cyUiKnvKERn8PByw uf8CqOjHHdeNNAnJv5erJqxUDCH5vbLJ1KBpecuHfa5FLsuVrRkIeoZAz2E8iXc2An/TZAaPX erf1K5eVWJIltYxomVZw== Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2020-11-05 at 19:02 +0100, Rafael J. Wysocki wrote: > On Thursday, November 5, 2020 4:08:30 PM CET Mike Galbraith wrote: > > On Thu, 2020-11-05 at 15:31 +0100, Rafael J. Wysocki wrote: > > > On Monday, November 2, 2020 7:18:41 AM CET Mike Galbraith wrote: > > > > > > > Desktop box did, it gained a working ondemand, while its previousl= y > > > > working powersave went broke. > > > > > > Most likely that's because it was handled by intel_pstate in the "ac= tive" mode > > > previously, while it is now handled by it in the "passive" mode... > > > > Perhaps the user interface should then nak switching to powersave as i= t > > used to nak switching to ondemand? > > It cannot do that if the powersave governor is configured in. > > [Essentially, the problem is that the "powersave" thing advertised by > intel_pstate in the "active" mode is not really the powersave governor, > but that is a mistake made in the past and cannot be undone. Sorry abou= t > that.] Hohum. A little unfortunate, but it probably only affects a few aging boxen like mine, and I now know better that to ever again do that.