2010/4/27 Randy Buck <[email protected]>: > It seems as though the longer my chain of nodes are, the lower my max send > rate can be. The issue is that I am running UDP, which, unlike TCP, doesn't > care about reliability (and therefore doesn't send any ACKs). So, why is > iperf (or something else) causing my maximum send rate to suffer? I will be > posting the plateau of one hop as soon as the tests are done.
Could some MAC arbitration be lowering the throughput at the low-level, link layer? UDP not caring about reliability means that the sending kernel MAY drop packets. The sending kernel does not HAVE TO drop packets and can sometimes instead block the sending process when all buffers are full. See past discusions in the archive. What is the relative TCP performance in the same conditions? ------------------------------------------------------------------------------ _______________________________________________ Iperf-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/iperf-users
