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    SubjectRe: Horrendous Audio Stutter - current git
    Date
    On Friday 02 May 2008, Peter Zijlstra wrote:
    > So by default we have both enabled; could you report if either
    > NO_NEW_FAIR_SLEEPERS
    > NEW_FAIR_SLEEPERS + NO_NORMALIZED_SLEEPERS
    > works for you?

    Both work for me. Tested with current git head (mainline) + your patch.

    > Also, could you apply this patch, and report the bonus_max value for
    > your music player under all three scenarios?

    I've restarted amarok and the glibc build each time after change to
    sched_features.

    # cat sched_features
    NEW_FAIR_SLEEPERS WAKEUP_PREEMPT START_DEBIT AFFINE_WAKEUPS CACHE_HOT_BUDDY
    SYNC_WAKEUPS HRTICK NO_DOUBLE_TICK NORMALIZED_SLEEPER DEADLINE

    => skips in music (amarok)

    /proc/20734/task/20734/sched:se.bonus_max : 40960.000000
    /proc/20734/task/20775/sched:se.bonus_max : 40960.000000
    /proc/20734/task/20779/sched:se.bonus_max : 40960.000000
    /proc/20734/task/20780/sched:se.bonus_max : 40960.000000
    /proc/20734/task/20781/sched:se.bonus_max : 40960.000000
    /proc/20734/task/20782/sched:se.bonus_max : 39.960966
    /proc/20734/task/20799/sched:se.bonus_max : 40960.000000

    # echo NO_NEW_FAIR_SLEEPERS >sched_features

    => no skips in music

    /proc/26357/task/26357/sched:se.bonus_max : 0.000000
    /proc/26357/task/26362/sched:se.bonus_max : 0.000000
    /proc/26357/task/26366/sched:se.bonus_max : 0.000000
    /proc/26357/task/26367/sched:se.bonus_max : 0.000000
    /proc/26357/task/26368/sched:se.bonus_max : 0.000000
    /proc/26357/task/26369/sched:se.bonus_max : 0.000000
    /proc/26357/task/9705/sched:se.bonus_max : 0.000000

    # echo NEW_FAIR_SLEEPERS >sched_features
    # echo NO_NORMALIZED_SLEEPER >sched_features

    => no skips in music

    /proc/13352/task/13352/sched:se.bonus_max : 0.000000
    /proc/13352/task/13357/sched:se.bonus_max : 0.000000
    /proc/13352/task/13361/sched:se.bonus_max : 0.000000
    /proc/13352/task/13362/sched:se.bonus_max : 0.000000
    /proc/13352/task/13363/sched:se.bonus_max : 0.000000
    /proc/13352/task/13364/sched:se.bonus_max : 0.000000
    /proc/13352/task/27595/sched:se.bonus_max : 0.000000

    Cheers,
    FJP


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