linux-kernel - Re: [PATCH 0/4] CPUFreq statistics retrieved by drivers

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Date:   Thu, 6 Aug 2020 14:37:31 +0100
From:   Sudeep Holla <sudeep.holla@....com>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     Viresh Kumar <viresh.kumar@...aro.org>,
        Lukasz Luba <lukasz.luba@....com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-pm@...r.kernel.org, cristian.marussi@....com,
        rjw@...ysocki.net, Sudeep Holla <sudeep.holla@....com>
Subject: Re: [PATCH 0/4] CPUFreq statistics retrieved by drivers

On Wed, Aug 05, 2020 at 10:33:02AM -0700, Florian Fainelli wrote:
>
>
> On 8/5/2020 9:03 AM, Sudeep Holla wrote:
> > On Wed, Aug 05, 2020 at 06:34:36PM +0530, Viresh Kumar wrote:
> >> On 05-08-20, 12:04, Lukasz Luba wrote:
> >>> I know that Viresh is going to develop patches and improve these
> >>> cpufreq stats framework. Maybe he also had this 'aggregation' in mind.
> >>> I will leave it him.
> >>
> >> I am only going to look at cpufreq's view of stats independently from
> >> the firmware.
> >>
> >
> > +1, I agree with that. Kernel must avoid any logic to aggregate or
> > interpret the data in a generic way. The userspace tools can manage that
> > especially if this tend to be platform specific.
>
> We can probably standardize on how to expose the firmware maintained
> statistics such that these tools do not have to widely vary from
> platform to platform, right?

Ofcourse. I just don't want any logic that interpret/analyse the stats
comparing with the in-kernel stats or otherwise.

--
Regards,
Sudeep