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    SubjectRe: RFC: THE OFFLINE SCHEDULER
    On 08/26/2009 02:50 PM, Andrew Morton wrote:

    > What problem?
    >
    > All I've seen is "I want 100% access to a CPU". That's not a problem
    > statement - it's an implementation.
    >
    > What is the problem statement?

    I can only speak for myself...

    In our case the problem statement was that we had an inherently
    single-threaded emulator app that we wanted to push as hard as
    absolutely possible.

    We gave it as close to a whole cpu as we could using cpu and irq
    affinity and we used message queues in shared memory to allow another
    cpu to handle I/O. In our case we still had kernel threads running on
    the app cpu, but if we'd had a straightforward way to avoid them we
    would have used it.

    Chris


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