Re: [PATCH] cpufreq: Add scaling frequency range support

From: Rafael J. Wysocki
Date: Tue Jul 28 2015 - 19:48:14 EST


On Tuesday, July 28, 2015 11:32:19 AM Pan Xinhui wrote:
> From: Pan Xinhui <xinhuix.pan@xxxxxxxxx>
>
> Userspace at most time do cpufreq tests very much inconveniently.
> Currently they have to echo min and max cpu freq separately like below:
> echo 480000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq
> echo 2240000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq

And why is this a problem?

> Add scaling_freq_range cpufreq attr to support userspace's demand.
> Therefore it's easier for testers to write readable scripts like below:
> echo 480000-2240000 >
> /sys/devices/system/cpu/cpu0/cpufreq/scaling_freq_range

I'm not sure I agree with the statement that this is more readable.

Not applied.

Thanks,
Rafael

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