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    SubjectRe: Scheduler fairness problem on 2.6 series (Attn: Nick Piggin and others)
    William Lee Irwin III wrote:
    > On Tue, Aug 10, 2004 at 07:21:43PM -0700, spaminos-ker@yahoo.com wrote:
    >
    >>I am not very familiar with all the parameters, so I just kept the defaults
    >>Anything else I could try?
    >>Nicolas
    >
    >
    > No. It appeared that the SPA bits had sufficient fairness in them to
    > pass this test but apparently not quite enough.
    >

    The interactive bonus may interfere with fairness (the throughput bonus
    should actually help it for tasks with equal nice) so you could try
    setting max_ia_bonus to zero (and possibly increasing max_tpt_bonus).
    With "eb" mode this should still give good interactive response but
    expect interactive response to suffer a little in "pb" mode however
    renicing the X server to a negative value should help.

    Peter
    PS There's a primitive GUI available for setting the scheduler
    parameters at
    <http://prdownloads.sourceforge.net/cpuse/gcpuctl_hydra-1.3.tar.gz?download>
    this is just a Python script with a Glade XML file (gcpuctl_hydra.glade)
    which needs to be in the same directory that you run the script from.
    --
    Peter Williams pwil3058@bigpond.net.au

    "Learning, n. The kind of ignorance distinguishing the studious."
    -- Ambrose Bierce

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