Received: by 2002:ac0:a582:0:0:0:0:0 with SMTP id m2-v6csp762495imm; Thu, 4 Oct 2018 02:58:15 -0700 (PDT) X-Google-Smtp-Source: ACcGV627T0T8XpHZy64ItYHTkRcV+B5DvLhMWbdmdGyDPgdtJO7EDPV3w1gYCks5N0maPkqFx6F9 X-Received: by 2002:a63:d917:: with SMTP id r23-v6mr5159063pgg.0.1538647095508; Thu, 04 Oct 2018 02:58:15 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1538647095; cv=none; d=google.com; s=arc-20160816; b=cjRvEqeu76xuR1WExX+K9XlUxr+SwrnFFZ5MkqVeg14clIzghyeKbZUC7FPD+gBNng 9DUryqWdUelt3RpqdwOO8fm0l5WEKEDSkg14R6lpumEli745SSHX0Qv5stmCtDn1cw7u g111v2LTk5w+7e9DRAu8j9egXoUmURay9su9WNEDFOKJEPal+SaS6SgXpuAIH7saZPtK YwARqvvI1o+tZq32jf68rz3Gfacbk/bIxBrGPwzltZzsMnpsG3m7u3aRpimo0WoH41ZB TrKKbJXvk7GHEdRvhW6gsaQ6oRT1lcsKov82C+ImSu1ZQXH0i1V7wq3EqKUKL74pCYdb 9/5A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=iTdn50qf8t+HRV4TNgnLbYtqnwcownmfAaoedqeuDk8=; b=NSLlcj5den4nTUSAH9uG8bsBlpV8erUaVth3KiLAdA1FrK2PHUtAql1WjaPli+Tplb KylJZfDigOBCdAykpvyLenerEDwppnKf8k5jjZbiV7wOaxUYwwpCyiRGc2JmegvPUxdb 3SOS88JA95l+/xySqwQ9X/cKiQ7FMo17P0RliPVc1Q9hngZ0P9sjcHj4GOZwjEhzpO3o ZMzoay9YpJj8JV1H0hhj27H2XD9nPoBq96RFXWhktoUM/nu8ikZmPsC9hg2zIEW1VYJZ 0QvHd7pSPceQkv8Mzc+GI57L9t58Kx3lIHSrpiBhqXKcPkvgPxrXRztRKcjGMGCy3ibH nlfg== 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 z14-v6si4870866pgk.172.2018.10.04.02.57.59; Thu, 04 Oct 2018 02:58:15 -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 S1727836AbeJDQtk (ORCPT + 99 others); Thu, 4 Oct 2018 12:49:40 -0400 Received: from foss.arm.com ([217.140.101.70]:33708 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727399AbeJDQtk (ORCPT ); Thu, 4 Oct 2018 12:49:40 -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 E98777A9; Thu, 4 Oct 2018 02:57:09 -0700 (PDT) Received: from queper01-lin (queper01-lin.Emea.Arm.com [10.4.13.27]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id CBC863F5D3; Thu, 4 Oct 2018 02:57:05 -0700 (PDT) Date: Thu, 4 Oct 2018 10:57:04 +0100 From: Quentin Perret To: Peter Zijlstra Cc: rjw@rjwysocki.net, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, gregkh@linuxfoundation.org, mingo@redhat.com, dietmar.eggemann@arm.com, morten.rasmussen@arm.com, chris.redpath@arm.com, patrick.bellasi@arm.com, valentin.schneider@arm.com, vincent.guittot@linaro.org, thara.gopinath@linaro.org, viresh.kumar@linaro.org, tkjos@google.com, joel@joelfernandes.org, smuckle@google.com, adharmap@codeaurora.org, skannan@codeaurora.org, pkondeti@codeaurora.org, juri.lelli@redhat.com, edubezval@gmail.com, srinivas.pandruvada@linux.intel.com, currojerez@riseup.net, javi.merino@kernel.org Subject: Re: [PATCH v7 05/14] sched: Introduce a sched_feat for Energy Aware Scheduling Message-ID: <20181004095701.j5zt5guetxswdbi7@queper01-lin> References: <20180912091309.7551-1-quentin.perret@arm.com> <20180912091309.7551-6-quentin.perret@arm.com> <20181002123416.GA3439@hirez.programming.kicks-ass.net> <20181002130818.fciw7cmlwggymxrz@queper01-lin> <20181003162435.GA19252@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181003162435.GA19252@hirez.programming.kicks-ass.net> User-Agent: NeoMutt/20171215 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday 03 Oct 2018 at 18:24:35 (+0200), Peter Zijlstra wrote: > Yeah, sysctl, see for example: sysctl.kernel.numa_balancing and the > sched_numa_balancing static_key that goes with it. OK, that works for me. > I would default enable EAS if the EM is there and valid, but allow > people to disable it. Right, that'd be much nicer than the sched_feat off by default, I agree. I'll see what I can do :-) Thanks, Quentin