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SubjectRe: [RFC][PATCH v5 00/14] sched: packing tasks
On 11/11/2013 10:31 AM, Catalin Marinas wrote:
> I agree, we can't rely on the requested C-state but the_actual_ state
> and this means querying the hardware driver. Can we abstract this via
> some interface which provides the cost of waking up a CPU? This could
> take into account the state of the other CPUs in the cluster and the
> scheduler is simply concerned with the wake-up costs.

can you even query this without actually waking up the cpu and asking ???



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