Re: [PATCH] cpufreq: governor: Be friendly towards latency-sensitive bursty workloads

[Rafael J. Wysocki]

Hi Srivatsa,

On Tuesday, May 27, 2014 02:23:38 AM Srivatsa S. Bhat wrote:
> Cpufreq governors like the ondemand governor calculate the load on the CPU
> periodically by employing deferrable timers. A deferrable timer won't fire
> if the CPU is completely idle (and there are no other timers to be run), in
> order to avoid unnecessary wakeups and thus save CPU power.
> 
> However, the load calculation logic is agnostic to all this, and this can
> lead to the problem described below.

This is subtle enough that I need some more time to chew on it, but since the
merge window is coming, I'm not sure when that's going to happen honestly.

Rafael

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