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

From: Rafael J. Wysocki
Date: Wed Mar 30 2016 - 18:29:28 EST


On Thu, Mar 31, 2016 at 12:23 AM, Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote:
> On Wed, Mar 30, 2016 at 11:58 PM, Rafael J. Wysocki
> <rafael.j.wysocki@xxxxxxxxx> 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?