> I seem to remember IBM did somthing like this with back-to-back DMAs in > RS6000 in the early 1990s, but does anyone do it now? or do we feel that > UDP over 40gE is fast enough for anything anyone needs (at present)?
40gbe has more bandwidth than an 8 lane pcie 2.0 slot, but obviously bandwidth != latency. :-) i'm not sure why you'd use udp if you're using it as a bus, though. - erik
