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    SubjectRe: [patch] voluntary-preempt-2.6.9-rc1-bk4-R0
    On Thu, 2004-09-02 at 18:14, Ingo Molnar wrote:
    > * Lee Revell <> wrote:
    > > > i've given up on the netdev_backlog_granularity approach, and as a
    > > > replacement i've modified specific network drivers to return at a safe
    > > > point if softirq preemption is requested.
    > >
    > > Makes sense, netdev_max_backlog never made a difference on my system
    > > (via-rhine driver).
    > via-rhine does RX processing from the hardirq handler, this codepath is
    > harder to break up. The NAPI ->poll functions used by e100 and 8193too
    > are much easier to break up because RX throttling and re-trying is a
    > basic property of NAPI.

    What I meant was, I did not consider the latencies from via-rhine to be
    a problem. The other posters reported 300-500 usec latencies in the
    network driver, I did not see this.


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