Re: [PATCH 3/11] cpufreq: governor: Use common global_dbs_data pointer

From: Rafael J. Wysocki
Date: Thu Feb 04 2016 - 22:10:25 EST


On Fri, Feb 5, 2016 at 4:02 AM, Viresh Kumar <viresh.kumar@xxxxxxxxxx> wrote:
> On 04-02-16, 17:52, Rafael J. Wysocki wrote:
>> On Thu, Feb 4, 2016 at 6:36 AM, Viresh Kumar <viresh.kumar@xxxxxxxxxx> wrote:
>
>> > Consider a two policy system, who is stopping us from setting ondemand
>> > for one of them and conservative for the other one ? And so, we will
>> > have two gdbs_data ..
>>
>> I don't really regard that as an entirely sane thing to do, but you
>> have a point here.
>
> Why? Its quite useful IMO. For example on TC2, we have two clusters of
> A7 and A15. And we actually can configure A7 for interactive and A15
> for ondemand. And this is very useful for performance/power metrics.

Well, doing insane things may give you better results sometimes.
Depending on what you want to achieve and other factors.

Thanks,
Rafael