[ofa-general] RE: [Bug 506] IPoIB IPv4 multicast throughput is poor

Scott Weitzenkamp (sweitzen) sweitzen at cisco.com
Tue Apr 10 12:56:24 PDT 2007


> > The low throughput is a major issue, though.  Shouldn't the 
> IP multicast
> > throughput be similar to the UDP unicast throughput?
> 
> Is the send side a send only member of multicast group, or 
> full member?
> If it's a full join, HCA creates extra loopback traffic which
> has then to be discarded, and which might explain performance 
> degradation.

I don't know if it's send only member or full member, can you try iperf
yourself please?

Scott



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