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    SubjectRe: [PATCH] 2.6.1 Hyperthread smart "nice" 2

    * Con Kolivas <> wrote:

    > What this one does is the following; If there is a "nice" difference
    > between tasks running on logical cores of the same cpu, the more
    > "nice" one will run a proportion of time equal to the timeslice it
    > would have been given relative to the less "nice" task. ie a nice 19
    > task running on one core and the nice 0 task running on the other core
    > will let the nice 0 task run continuously (102ms is normal timeslice)
    > and the nice 19 task will only run for the last 10ms of time the nice
    > 0 task is running. This makes for a much more balanced resource
    > distribution, gives significant preference to the higher priority
    > task, but allows them to benefit from running on both logical cores.

    this is a really good rule conceptually - the higher prio task will get
    at least as much raw (unshared) physical CPU slice as it would get
    without HT.

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