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Message-ID: <9eac86b6-0221-0f62-ac4f-f9e3b1613422@arm.com>
Date:   Tue, 26 Apr 2022 08:59:33 +0100
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Subject: Re: [RFC PATCH v3 0/5] Introduce Cpufreq Active Stats
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To:     Viresh Kumar <viresh.kumar@linaro.org>
Cc:     linux-kernel@vger.kernel.org, dietmar.eggemann@arm.com,
        rafael@kernel.org, daniel.lezcano@linaro.org, amitk@kernel.org,
        rui.zhang@intel.com, amit.kachhap@gmail.com,
        linux-pm@vger.kernel.org
References: <20220406220809.22555-1-lukasz.luba@arm.com>
 <20220426031125.ozaxwecwvuby6wo3@vireshk-i7>
 <f6bb20c6-38a0-57d6-8979-d14e445da623@arm.com>
 <20220426075402.qjpato6sqy2kes4x@vireshk-i7>
From:   Lukasz Luba <lukasz.luba@arm.com>
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On 4/26/22 08:54, Viresh Kumar wrote:
> On 26-04-22, 08:46, Lukasz Luba wrote:
>> I haven't modify your current cpufreq stats, they are still counting
>> total time (idle + running) for the given frequency. I think this is
>> still useful for some userspace tools. These new proposed stats don't
>> have such sysfs interface to read them. I don't know if userspace would
>> be interested in this information (the running only time). IIRC Android
>> uses bpf mechanisms to get this information to the userspace.
> 
> I saw some debugfs bits there, aren't you exposing any data via it ? I
> am just asking about, not suggesting :)
> 

:) but I didn't dare to make it sysfs. I don't know if anything in
user-space would be interested (apart from my test scripts).