Re: UDP/IP via Ethernet in real time (config-preempt patch)

From: M. Koehrer
Date: Wed Jul 18 2007 - 03:04:55 EST


> > > How can I get this UDP networking real time capable?
> >
> > In general, you'll have to find a non-NAPI ethernet driver and disable any
> form
> > of interrupt throttling. This will likely adversely affect throughput of
> course...
> >
>
> RT kernel will also change the adapter hard irq into a work queue so it
> will
> actually make the receive latency worse not better.
>
It is possible somehow to "boost" the work queue for this interrupt to
run with real time priority? In this case, the latency should be good enough.

Mathias

--
Mathias Koehrer
mathias_koehrer@xxxxxxxx


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