From mboxrd@z Thu Jan 1 00:00:00 1970 From: Viresh Kumar Subject: Re: [RFC] Should we add Android's Interactive governor into mainline now? Date: Fri, 13 May 2016 08:51:56 +0530 Message-ID: <20160513032156.GE3415@vireshk-i7> References: <20160512163648.GB12886@graphite.smuckle.net> <20160512211012.GA28594@graphite.smuckle.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail-pf0-f174.google.com ([209.85.192.174]:36808 "EHLO mail-pf0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751438AbcEMDWA (ORCPT ); Thu, 12 May 2016 23:22:00 -0400 Received: by mail-pf0-f174.google.com with SMTP id c189so38704339pfb.3 for ; Thu, 12 May 2016 20:22:00 -0700 (PDT) Content-Disposition: inline In-Reply-To: <20160512211012.GA28594@graphite.smuckle.net> Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: Steve Muckle Cc: "Rafael J. Wysocki" , "Rafael J. Wysocki" , "linux-pm@vger.kernel.org" , Peter Zijlstra , Linaro Kernel Mailman List , Ingo Molnar , Morten Rasmussen , Juri Lelli , Vincent Guittot On 12-05-16, 14:10, Steve Muckle wrote: > By far the biggest user of interactive is Android (I'm not aware of its > use elsewhere). Persuading Google to switch is relatively doable once a > viable alternative exists. After that point I'd expect the desire to > merge and maintain interactive would almost immediately disappear. Folks > wanting to run upstream kernels on already released devices have much > bigger hurdles than merging the interactive governor. > > But if interactive is merged I'm worried that many other users on random > platforms will adopt it, for whatever reason, introducing a support > burden during a time that we're trying to develop and encourage an > alternative. Lets assume that its going to take enough time for (specially) Android to start using the schedutil governor. That's how it works. So, if we are worried about new users using it (who may not have a good reason to do that but did it by mistake), maybe we can make the interactive governor depend on CONFIG_ARM. > Anyway that's just my $.02 - it'd actually be good for me as > again it'd permit easier comparison with schedutil, so I won't complain > if it goes in :) . -- viresh