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    SubjectRe: Poor UDP performance using 2.6.21-rc5-rt5

    * David Sperry <dave_sperry@ieee.org> wrote:

    > > there are a few other things i'm working on to improve this. I've
    > > uploaded -rt9 which is the current state of affairs. Note that using
    > > -rt9 you'll likely only see IRQ-8406 overhead in the system, because
    > > i've added an optimization to do process the softirq-net-tx workload
    > > in the hardirq thread if the priority of the two is the same (which
    > > is the default behavior). But -rt9 is still work in progress that is
    > > not fully finished yet: in some cases i'm seeing 'fluctuating
    > > performance' problems on forcedeth that werent there before.
    >
    > I tried -rt9 and saw some odd 'fluctuating performance'. I'll try it
    > again tomorrow when I am much closer to the box's power button.

    could you try -rt10? I've improved hardirq/softirq threading performance
    some more, and have tuned the forcedeth driver too.

    Ingo
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