linux-kernel - Re: [intel-pstate driver regression] processor frequency very high even if in idle

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Message-ID: <CAJZ5v0jcyj17Z9Arhc7vA5Vx2EotK_jUnnjvDwC2gS_1CxbAoA@mail.gmail.com>
Date:	Thu, 31 Mar 2016 00:29:22 +0200
From:	"Rafael J. Wysocki" <rafael@...nel.org>
To:	sedat.dilek@...il.com
Cc:	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
	Doug Smythies <dsmythies@...us.net>,
	Jörg Otte <jrg.otte@...il.com>,
	Linux PM List <linux-pm@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>
Subject: Re: [intel-pstate driver regression] processor frequency very high
 even if in idle

On Thu, Mar 31, 2016 at 12:23 AM, Sedat Dilek <sedat.dilek@...il.com> wrote:
> On Wed, Mar 30, 2016 at 11:58 PM, Rafael J. Wysocki
> <rafael.j.wysocki@...el.com> wrote:
>> On 3/30/2016 11:41 PM, 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 <https://patchwork.kernel.org/patch/8702071/>.
>>>
>>> Please see attached files.
>>
>>
>> Thanks for the report.
>>
>> The address of linux-pm in your original message was incorrect.  Can you
>> please resend the turbostat output in reply to this message?
>>
>
> Sorry for the wrong ML.
>
> Attached are new (-12 with your simplified revert) and old turbostat outputs.

So the simplified revert doesn't help - or does it?