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

[Rafael J. Wysocki]

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 <https://patchwork.kernel.org/patch/8702071/>.
> >
> > 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?

So there seems to be a problem here AFAICS.