From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758708AbaELOjm (ORCPT ); Mon, 12 May 2014 10:39:42 -0400 Received: from mail-pa0-f53.google.com ([209.85.220.53]:58599 "EHLO mail-pa0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753557AbaELOjj (ORCPT ); Mon, 12 May 2014 10:39:39 -0400 X-Google-Original-From: Dirk Brandewie Message-ID: <5370DD27.5030701@intel.com> Date: Mon, 12 May 2014 07:39:35 -0700 From: Dirk Brandewie User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 MIME-Version: 1.0 To: "Rafael J. Wysocki" , Stratos Karafotis , dirk.brandewie@gmail.com CC: dirk.j.brandewie@intel.com, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: Re: [PATCH 4/5] intel_pstate: Remove C0 tracking References: <1399579047-5792-1-git-send-email-dirk.j.brandewie@intel.com> <5370318D.2010309@semaphore.gr> <5349714.j69a5Fx52S@vostro.rjw.lan> In-Reply-To: <5349714.j69a5Fx52S@vostro.rjw.lan> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/12/2014 05:16 AM, Rafael J. Wysocki wrote: > On Monday, May 12, 2014 05:27:25 AM Stratos Karafotis wrote: >> Hi, >> > > [cut] > >> >> With this patch, my CPU (Core i7-3770 @ 3.90GHz) seems to never use lowest >> frequencies. Even on an idle system I get always ~2GHz. Normally, >> on an idle system it used to be 1.6GHz. >> On very small loads (mp3 decoding) the CPU goes up to 2.7G GHz (it used to >> be 1.6GHz) >> >> Reverting, this patch on my local build, the problem is resolved. > > Dirk, seriously, I can't regard this as a fix that can go into -rc6. > Ok I will resubmit after more testing > Which of the other patch in the series are must-go for 3.15? [1-2/5] I guess? > And do we need [2/5] it in -stable too? 1/5 is for stable it fixes a random MCE on baytrail. 2/5 is for stable it should have went with the stop_cpu patch 5/5 can go too since it is just adding CPU IDs > >