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=-3.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 53B0DC388F2 for ; Thu, 22 Oct 2020 12:30:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E38AD221FB for ; Thu, 22 Oct 2020 12:30:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="g+h2ebbh" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2898245AbgJVMaX (ORCPT ); Thu, 22 Oct 2020 08:30:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43060 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2898192AbgJVMaT (ORCPT ); Thu, 22 Oct 2020 08:30:19 -0400 Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:8b0:10b:1231::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 97213C0613CE; Thu, 22 Oct 2020 05:30:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=EedHvqVCCjLDevVL9HqqLGGu/5dwmfqkwiCkYnXrnOA=; b=g+h2ebbhZ35yKxhx72G5WLe0iJ 3rYFno3qrByA6M6lsokAgw7OrLS3xFU85vASl4h1DEqQl+pzuAfwt4F3VuiRzSXvt3kN2Yba1LJeT R4CjyU1YtwTUbROFR4U5+7rTnS6MS6pKpUaeQ/zXmgJ2V0sc2upTt4v2zLsnZX1eegkeRU9kmfa76 WElyrTsC25oKVo6e9kbGnO2Pm4y/b5VFJORsyej7cDtfrEhYV5f5Mk79reBSabhg58Tr8Mm6HxnNg J8nlexO5gNUGekaDJPKVbKbTyae7LBzx1quCNZAN0M4f6R5I3NY4S4jnAGZL7fKAzZc2uBZeivhom fxPJ9h6A==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kVZj7-000463-HD; Thu, 22 Oct 2020 12:29:53 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 5A0DF306099; Thu, 22 Oct 2020 14:29:49 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 27418203CC4B3; Thu, 22 Oct 2020 14:29:49 +0200 (CEST) Date: Thu, 22 Oct 2020 14:29:49 +0200 From: Peter Zijlstra To: "Rafael J. Wysocki" Cc: Viresh Kumar , Julia Lawall , Mel Gorman , Ingo Molnar , kernel-janitors@vger.kernel.org, Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Daniel Bristot de Oliveira , linux-kernel@vger.kernel.org, Valentin Schneider , Gilles Muller , srinivas.pandruvada@linux.intel.com, Linux PM , Len Brown Subject: Re: default cpufreq gov, was: [PATCH] sched/fair: check for idle core Message-ID: <20201022122949.GW2628@hirez.programming.kicks-ass.net> References: <1603211879-1064-1-git-send-email-Julia.Lawall@inria.fr> <34115486.YmRjPRKJaA@kreacher> <20201022120213.GG2611@hirez.programming.kicks-ass.net> <1790766.jaFeG3T87Z@kreacher> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1790766.jaFeG3T87Z@kreacher> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Oct 22, 2020 at 02:19:29PM +0200, Rafael J. Wysocki wrote: > > However I do want to retire ondemand, conservative and also very much > > intel_pstate/active mode. > > I agree in general, but IMO it would not be prudent to do that without making > schedutil provide the same level of performance in all of the relevant use > cases. Agreed; I though to have understood we were there already.