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    SubjectRe: low priority soft RT?
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    >>>>> "RvR" == Rik van Riel <riel@nl.linux.org> writes:

    RvR> On 25 Jul 1999, Benny Amorsen wrote:

    >> Would it benefit throughput if it was guaranteed that the sleeping
    >> process gets to go forward at the expense of the already running
    >> process? It would mean that processes get out of kernel mode
    >> quicker.

    RvR> Please take a look at my SCHED_IDLE patch:
    RvR> http://www.nl.linux.org/~riel/patches/

    RvR> It does exactly what you describe, or at least I hope so.

    From my reading of the patch, it only affects processes running with a
    priority of SCHED_IDLE. I intended to propose that even SCHED_OTHER
    processes could get promoted.

    Getting the penalty right so it is neither exploitable nor too harsh
    might be hard though. Being too harsh to a SCHED_IDLE process isn't a
    problem -- we are already as harsh as possible to them.


    Benny


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