From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1034252AbdAEPoJ (ORCPT ); Thu, 5 Jan 2017 10:44:09 -0500 Received: from mx1.redhat.com ([209.132.183.28]:40122 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S968105AbdAEPoC (ORCPT ); Thu, 5 Jan 2017 10:44:02 -0500 Message-ID: <1483631039.25514.1.camel@redhat.com> Subject: Re: [PATCH 1/3] cpuidle/menu: stop seeking deeper idle if current state is too deep From: Rik van Riel To: Alex Shi , Daniel Lezcano , "Rafael J . Wysocki" , vincent.guittot@linaro.org, open list Cc: linux-pm@vger.kernel.org, Ulf Hansson , Rasmus Villemoes , Arjan van de Ven Date: Thu, 05 Jan 2017 10:43:59 -0500 In-Reply-To: <1483630187-29622-2-git-send-email-alex.shi@linaro.org> References: <1483630187-29622-1-git-send-email-alex.shi@linaro.org> <1483630187-29622-2-git-send-email-alex.shi@linaro.org> Organization: Red Hat, Inc Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Thu, 05 Jan 2017 15:44:03 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2017-01-05 at 23:29 +0800, Alex Shi wrote: > The obsolete commit 71abbbf85 want to introduce a dynamic cstates, > but it was removed for long time. Just left the nonsense deeper > cstate > checking. > > Since all target_residency and exit_latency are going longer in > deeper > idle state, no needs to waste some cpu cycle on useless seeking. Makes me wonder if it would be worth documenting the requirement that c-states be listed in increasing order? Acked-by: Rik van Riel