Re: [RFC/RFT][PATCH 1/2] cpufreq: schedutil: Use policy-dependent transition delays

From: Joel Fernandes
Date: Fri Apr 14 2017 - 22:24:08 EST


On Fri, Apr 14, 2017 at 3:51 PM, Rafael J. Wysocki <rjw@xxxxxxxxxxxxx> wrote:
> On Tuesday, April 11, 2017 12:20:41 AM Rafael J. Wysocki wrote:
>> From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
>>
>> Make the schedutil governor take the initial (default) value of the
>> rate_limit_us sysfs attribute from the (new) transition_delay_us
>> policy parameter (to be set by the scaling driver).
>>
>> That will allow scaling drivers to make schedutil use smaller default
>> values of rate_limit_us and reduce the default average time interval
>> between consecutive frequency changes.
>>
>> Make intel_pstate set transition_delay_us to 500.
>>
>> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
>> ---
>>
>> This is a replacement for https://patchwork.kernel.org/patch/9671831/
>
> Any concerns about this one?

Looks good to me.

Thanks,
Joel