Hi. when executing iperf over IPoIB with multicast IP packets, there are some packets that being received out of order.
Here are my machine attributes: ************************************************************* Host Architecture : x86_64 Linux Distribution: Fedora Core release 4 (Stentz) Kernel Version : 2.6.11-1.1369_FC4smp Memory size : 4071672 kB Driver Version : openib_gen2-20060524-1700 (REV=7460) HCA ID(s) : mthca0 HCA model(s) : 25208 FW version(s) : 4.7.600 Board(s) : MT_00A0010001 ************************************************************* here are the iperf command line: sender command: ./iperf -c 10.4.3.86 -u -T 3 -t 400 -i 2 -b 1000M -l 100 receiver command: ./iperf -s -u -B 10.4.3.86 -i 2 here is the output of the receiver execution: Execute the receiver over IPoIB ------------------------------------------------------------ Server listening on UDP port 5001 Binding to local address 11.4.3.86 Receiving 1470 byte datagrams UDP buffer size: 132 KByte (default) ------------------------------------------------------------ [ 3] local 11.4.3.86 port 5001 connected with 11.4.3.87 port 33334 [ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams [ 3] 0.0- 2.0 sec 34.3 MBytes 144 Mbits/sec 0.003 ms 232/359959 (0.064%) [ 3] 0.0- 2.0 sec 45 datagrams received out-of-order [ 3] 2.0- 4.0 sec 34.3 MBytes 144 Mbits/sec 0.004 ms 0/359391 (0%) [ 3] 2.0- 4.0 sec 43 datagrams received out-of-order [ 3] 4.0- 6.0 sec 34.3 MBytes 144 Mbits/sec 0.003 ms 0/359470 (0%) [ 3] 4.0- 6.0 sec 31 datagrams received out-of-order [ 3] 6.0- 8.0 sec 34.3 MBytes 144 Mbits/sec 0.003 ms 0/359195 (0%) [ 3] 6.0- 8.0 sec 38 datagrams received out-of-order [ 3] 8.0-10.0 sec 34.3 MBytes 144 Mbits/sec 0.003 ms 0/359379 (0%) [ 3] 8.0-10.0 sec 48 datagrams received out-of-order Waiting for server threads to complete. Interrupt again to force quit. [ 3] 0.0-21.2 sec 364 MBytes 144 Mbits/sec 0.005 ms 232/3813508 (0.0061%) [ 3] 0.0-21.2 sec 595 datagrams received out-of-order Execute the receiver over IP ------------------------------------------------------------ Server listening on UDP port 5001 Binding to local address 10.4.3.86 Receiving 1470 byte datagrams UDP buffer size: 132 KByte (default) ------------------------------------------------------------ [ 3] local 10.4.3.86 port 5001 connected with 10.4.3.87 port 33334 [ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams [ 3] 0.0- 2.0 sec 14.4 MBytes 60.2 Mbits/sec 0.034 ms 355/150976 (0.24%) [ 3] 2.0- 4.0 sec 14.4 MBytes 60.2 Mbits/sec 0.010 ms 0/150599 (0%) [ 3] 4.0- 6.0 sec 14.4 MBytes 60.2 Mbits/sec 0.012 ms 0/150597 (0%) [ 3] 6.0- 8.0 sec 14.4 MBytes 60.2 Mbits/sec 0.011 ms 0/150599 (0%) [ 3] 8.0-10.0 sec 14.4 MBytes 60.2 Mbits/sec 0.009 ms 0/150598 (0%) [ 3] 10.0-12.0 sec 14.4 MBytes 60.2 Mbits/sec 0.010 ms 0/150584 (0%) [ 3] 12.0-14.0 sec 14.4 MBytes 60.2 Mbits/sec 0.009 ms 0/150583 (0%) [ 3] 14.0-16.0 sec 14.4 MBytes 60.2 Mbits/sec 0.019 ms 0/150601 (0%) [ 3] 16.0-18.0 sec 14.4 MBytes 60.2 Mbits/sec 0.009 ms 0/150576 (0%) [ 3] 18.0-20.0 sec 14.4 MBytes 60.2 Mbits/sec 0.021 ms 0/150583 (0%) [ 3] 20.0-22.0 sec 14.4 MBytes 60.2 Mbits/sec 0.010 ms 0/150591 (0%) Waiting for server threads to complete. Interrupt again to force quit. [ 3] 22.0-24.0 sec 14.4 MBytes 60.2 Mbits/sec 0.028 ms 0/150582 (0%) did anyone notice this issue before? thanks Dotan _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
