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    SubjectRe: [patch] voluntary-preempt-2.6.8.1-P8
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    On Mon, 2004-08-23 at 17:01, Ingo Molnar wrote:
    > i've uploaded the -P8 patch:
    >
    > http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.8.1-P8
    >
    > Changes since -P8:
    >
    > - fixes the DRI/DRM latency in radeon (and other drivers). The concept
    > was investigated/tested by Dave Airlie.
    >
    > - reduce netdev_max_backlog to 8 (Mark H Johnson)


    With -P8 I have not seen a latency over 100 usecs yet. The most common
    latencies are those involving zap_pte_range, journal_get_undo_access and
    netdev_process_backlog (even with netdev_max_backlog set to 4).

    Traces:

    http://krustophenia.net/testresults.php?dataset=2.6.8.1-P8

    Lee

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