pstate control on battery too strict

[Daniel Holz]

The default settings for pstates on battery are

#On battery
BATT_INTEL_PSTATE_PERF_MIN_PCT=0 # Minimum performance, in percent
BATT_INTEL_PSTATE_PERF_MAX_PCT=50 # Maximum performance, in percent
BATT_INTEL_PSTATE_NO_TURBO=1 # Disable "Turbo Boost"?

My Lenovo Yoga 3 11 has a Core M-5Y10c with a base clock of 800 MHz and clocks up to 2 GHz with turbo boost. With these settings my CPU is stuck at 800 MHz., which I think is way too strict.
I changed these settings to my demands now, but for a long time I thought it was a bug in the intel pstate driver. I recommand disabling the control of the pstates by Laptop Mode Tools by default to avoid any more confusion.

[Ritesh Raj Sarraf (rrs)]

On Tue, 2016-04-12 at 17:10 +0000, Daniel Holz wrote:
> Public bug reported:
>
> The default settings for pstates on battery are
>
> #On battery
> BATT_INTEL_PSTATE_PERF_MIN_PCT=0 # Minimum performance, in percent
> BATT_INTEL_PSTATE_PERF_MAX_PCT=50 # Maximum performance, in percent
> BATT_INTEL_PSTATE_NO_TURBO=1 # Disable "Turbo Boost"?
>
> My Lenovo Yoga 3 11 has a Core M-5Y10c with a base clock of 800 MHz and clocks
> up to 2 GHz with turbo boost. With these settings my CPU is stuck at 800 MHz.,
> which I think is way too strict.
> I changed these settings to my demands now, but for a long time I thought it
> was a bug in the intel pstate driver. I recommand disabling the control of the
> pstates by Laptop Mode Tools by default to avoid any more confusion.

Yes. This is already fixed upstream in my repo and will be part of the next
release.

Thanks.

--
Ritesh Raj Sarraf
RESEARCHUT - http://www.researchut.com
"Necessity is the mother of invention."