Re: Scaling governors in 14.1 stock kernel

On (13/11/13 15:31), Petri Kaukasoina <[email protected]> put forth the proposition:
>On Wed, Nov 13, 2013 at 12:59:14PM +0000, David Woodfall wrote:
>> Mine are 100, 57, 0
>>
>> >If you echo performance to scaling_governor, then the three files
>> >above contain 100, 100, and 0. The default (powersave) has a lower
>> >minimum P state, so it can lower the frequency.
>>
>> So powersave is the default now?
>>
>
>I guess it's just for compatibility that
>cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor tells you
>"powersave". What it means is what you saw, that your machine runs
>using between 57 and 100 percent of the available performance.
>The old meaning of powersave was to run at the minimum frequency. If
>you wanted THAT, you could
>
>echo 57 > /sys/devices/system/cpu/intel_pstate/max_perf_pct
>
>and then you would run at low performance all the time.
>
>You could say that the default now is about the same as the old
>"ondemand", that the system changes dynamically between a low
>percentage and 100 % of performance.

Right. That's what I want really. Thanks for all the info.

D.