Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753056AbcC3XcK (ORCPT ); Wed, 30 Mar 2016 19:32:10 -0400 Received: from mail-vk0-f65.google.com ([209.85.213.65]:36736 "EHLO mail-vk0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752182AbcC3XcH (ORCPT ); Wed, 30 Mar 2016 19:32:07 -0400 MIME-Version: 1.0 Reply-To: sedat.dilek@gmail.com In-Reply-To: References: <1459376311.13525.108.camel@linux.intel.com> <56FC5277.9050906@intel.com> <1459378003.13525.117.camel@linux.intel.com> <1459379847.13525.129.camel@intel.com> Date: Thu, 31 Mar 2016 01:32:06 +0200 Message-ID: Subject: Re: [intel-pstate driver regression] processor frequency very high even if in idle From: Sedat Dilek To: "Rafael J. Wysocki" Cc: "Pandruvada, Srinivas" , "Wysocki, Rafael J" , "dsmythies@telus.net" , "linux-kernel@vger.kernel.org" , "jrg.otte@gmail.com" , "linux-pm@vger.kernel.org" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1729 Lines: 54 On Thu, Mar 31, 2016 at 1:28 AM, Rafael J. Wysocki wrote: > On Thu, Mar 31, 2016 at 1:25 AM, Sedat Dilek wrote: >> On Thu, Mar 31, 2016 at 1:17 AM, Pandruvada, Srinivas >> wrote: >>> On Wed, 2016-03-30 at 15:46 -0700, Srinivas Pandruvada wrote: >>>> On Thu, 2016-03-31 at 00:25 +0200, Rafael J. Wysocki wrote: >>>> > >>>> > On 3/31/2016 12:18 AM, Srinivas Pandruvada wrote: >>>> > > >>>> > > >>>> > > On Wed, 2016-03-30 at 23:41 +0200, Sedat Dilek wrote: >>>> > > > >>>> > > > >>>> > > > Hi, >>>> > > > >>>> > > > I am using Intel-PState-Driver here with v4.6-rc1 and Intel- >>>> > > > SandyBridge-CPU. >>>> > > > >>>> > > > Here are my turbostat results attached. >>>> > > > >>>> > > > $ cd $BUILD_DIR >>>> > > > $ LC_ALL=C make -C tools/ turbostat >>>> > > > >>>> > > > $ sudo ./turbostat -i 1 --msr=0x199 --debug --out >>>> > > > /tmp/turbostat-i-1-msr-0x199-debug.txt >>>> > > > >>>> > > > Will try . >>>> > > > >>>> > > > Please see attached files. >>>> > > > >>>> > > Thanks. Your logs make sense. You have config set to performance >>>> > > mode >>>> > > by default (Which I believe default in all kernel Ubuntu). So as >>>> > > expected Intel P state was asking for max. So there is no issue >>>> > > here. >>>> > But the behavior is different from what it used to be, isn't it? >>>> > > > [cut] > >> >> Too much questions. > > OK > >> I switched to CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE=y and tested with >> the simplified revert-patch of Rafael. > > Why do you need the revert patch in the first place? I simply wanted to test CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE=y and keep the rest. - Sedat -