Re: [PATCH v2 1/2] cpufreq_stats: Adds sysfs file /sys/devices/system/cpu/cpufreq/current_in_state

From: Viresh Kumar
Date: Thu May 14 2015 - 22:48:55 EST

I am not replying for concept here, as sched maintainers are in a
better position for that, but a nit below..

On 14-05-15, 17:12, Ruchi Kandoi wrote:
> Adds the sysfs file for userspace to initialize the active current
> values for all the cores at each of the frequencies.
> The format for storing the values is as follows:
> echo "CPU<cpu#>:<freq1>=<current in uA> <freq2>=<current>,CPU<cpu#>:
> ..." > /sys/devices/system/cpu/cpufreq/current_in_state

Why this file? And not
/sys/devices/system/cpu/cpuX/cpufreq/stats/current_in_state ? That way
you don't have to replicate the same information for all CPUs, as the
stats folder can be shared by multiple CPUs (which share their
clock/voltage rails)..

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