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    SubjectRe: [patch] voluntary-preempt-2.6.9-rc1-bk4-Q7
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    On Wed, 2004-09-01 at 16:11, Peter Zijlstra wrote:
    > On Wed, 2004-09-01 at 19:09 +0200, Thomas Charbonnel wrote:
    > > Ingo Molnar wrote :
    > > > i've released the -Q7 patch:
    > > >
    > > > http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.9-rc1-bk4-Q7
    > >
    > > With Q7 I still get rx latency issues (> 130 us non-preemptible section
    > > from rtl8139_poll). Moreover network connections were extremely slow
    > > (almost hung) until I set /proc/sys/net/core/netdev_backlog_granularity
    > > to 2.
    > >
    > > Thomas
    > >
    >
    > Me too!
    > I too have a rtl8139 network card.
    >
    > kr, what kind of nic do you have since this does not occur on your
    > machine?

    Hmm, I am not a network driver expert, and this is just a guess, but if
    they work anything like sound cards, I would say that that that hardware
    will only generate an interrupt when there are 2 packets in its queue.

    Lee

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