Re: [PATCH V3 3/9] cpufreq: Cap the default transition delay value to 10 ms

From: Viresh Kumar
Date: Tue Aug 01 2017 - 23:23:49 EST


On 01-08-17, 20:48, Leonard Crestez wrote:
> > > I found this by enabling the power:cpu_frequency tracepoint event and
> > > checking for deltas with a script. Enabling CPU_FREQ_STAT show this:
> > >
> > > time_in_state:
> > >
> > > 396000 1609
> > So we still stay at the lowest frequency most of the time.
>
> Yes

Aren't these numbers you shared were taken after this patch is applied? What's
wrong with the numbers then ?

> > Maybe can you compare these values with and without this patch to let
> > us know?
>
> Without the patch it is always at low freq. Sampling at a lower
> frequency means spikes get ignored.

--
viresh