> > > The fun with NFR isnt the device backlog, its that BSD has a hack built
> > > into it basically solely for sniffing tools to use, and Linux doesn't.
> >
> > That may be the key to getting to *really* high packet rates. But Linux,
> > pin their test, slowed down as the packet rate increased. That's what
> > made me suspect the backlog. But it's just a guess.
>
> Its partly the packet backlog. This is why I dumped the whole NFR
> discussion nobody involved with the entire thing had done any serious
> investigation into why and how to solve it.
>From my reading, Alexey's turbopacket patch adds readv (and writev?) to
the AF_PACKET code (or something like it).
Is there a reason why that shouldn't see the light of 2.3?
Matthew.
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