From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752390AbdK3QGe (ORCPT ); Thu, 30 Nov 2017 11:06:34 -0500 Received: from mail-wr0-f172.google.com ([209.85.128.172]:43620 "EHLO mail-wr0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750923AbdK3QGc (ORCPT ); Thu, 30 Nov 2017 11:06:32 -0500 X-Google-Smtp-Source: AGs4zMZIRP4LNn5V6Gbe+qNGz01jIFyNJqKr0ab0zXyNszERG+pGFjusOv6JTygKhKI5Vmc/E6E1Cg== Date: Thu, 30 Nov 2017 17:06:27 +0100 From: Juri Lelli To: Patrick Bellasi Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Ingo Molnar , Peter Zijlstra , "Rafael J . Wysocki" , Viresh Kumar , Vincent Guittot , Dietmar Eggemann , Morten Rasmussen , Todd Kjos , Joel Fernandes Subject: Re: [PATCH v3 5/6] cpufreq: schedutil: relax rate-limiting while running RT/DL tasks Message-ID: <20171130160627.GJ9903@localhost.localdomain> References: <20171130114723.29210-1-patrick.bellasi@arm.com> <20171130114723.29210-6-patrick.bellasi@arm.com> <20171130133642.GE9903@localhost.localdomain> <20171130155403.GE31247@e110439-lin> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20171130155403.GE31247@e110439-lin> User-Agent: Mutt/1.9.1 (2017-09-22) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 30/11/17 15:54, Patrick Bellasi wrote: > On 30-Nov 14:36, Juri Lelli wrote: [...] > > I wonder if we would also need some way to trigger a back to back update > > as soon as a currently running one finishes and an RT/DL task asked for > > an update (without waiting for the next tick). > > Good point, I think that would actually be an interesting > optimization. We already discussed that in the past, but refrained by > adding more on top of this already "substantial" set of changes. > > Can we think about that once we decided about some patches of this > series? Definitely yes for me. One bit at a time. :) Best, Juri