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    Subject[patch] voluntary-preempt-2.6.8.1-P4

    i've uploaded the -P4 patch:

    http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.8.1-P4

    the main change is a more robust latency tracer - the previous one was
    not 100% correct for interrupts. People who have exprienced those weird
    ~1msec latencies in the idle task please re-check and re-post latency
    traces.

    Changes since -P3:

    - changed SHA_CODE_SIZE from 0 to 3 to reduce RNG overhead

    - fixed the copy_page_range latency

    - improved the latency tracer

    Ingo
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