From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752643Ab3FXLAg (ORCPT ); Mon, 24 Jun 2013 07:00:36 -0400 Received: from hydra.sisk.pl ([212.160.235.94]:48932 "EHLO hydra.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751922Ab3FXKvO (ORCPT ); Mon, 24 Jun 2013 06:51:14 -0400 From: "Rafael J. Wysocki" To: Chanwoo Choi Cc: Viresh Kumar , linux-kernel@vger.kernel.org, Kyungmin Park , Myungjoo Ham Subject: Re: [PATCH v2] cpufreq: stats: Add 'load_table' debugfs file to show accumulated data of CPUs Date: Mon, 24 Jun 2013 13:00:41 +0200 Message-ID: <4710866.fhlicB7Bsa@vostro.rjw.lan> User-Agent: KMail/4.9.5 (Linux/3.10.0-rc5+; KDE/4.9.5; x86_64; ; ) In-Reply-To: References: <1371716524-19370-1-git-send-email-cw00.choi@samsung.com> <3966081.PYqoVoQ0Wq@vostro.rjw.lan> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="utf-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Monday, June 24, 2013 04:03:15 PM Viresh Kumar wrote: > On 24 June 2013 15:50, Rafael J. Wysocki wrote: > > My impression was that that new interface wouldn't be useful on all platforms > > supported by cpufreq. If that's the case, I'd rather not make changes in the > > core code that are needed only to implement that new interface, at least to > > start with. > > Every platform might not have userspace software that would do some > actions based on this. But, these are nice and useful stats to have. > > They tell you a lot about how the hardware/governor/policies are > behaving with load. And so will eventually help getting performance based > on governor tunables for your platform. That's why I asked to put this in > core as this should be pretty much useful. OK, let's see how the code will look like. Chanwoo, please prepare a v4 with the changes suggested by Viresh. Thanks, Rafael -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center.