RE: [PATCH v11 01/13] x86/resctrl: Replace smp_call_function_many() with on_each_cpu_mask()

[Luck, Tony]

> I wasn't sure if the few ms difference is going to make much material
> difference for that process. IPI's does shake things up and introduces
> other overheads not related to this process.

Is it just a few milli-seconds? What is the scheduler priority of the kernel
thread you wake to perform this action? How does that compare to the
priority of a RT thread?  I may be wrong here, but I think an RT thread can
block a kernel thread from running indefinitely.

-Tony