Hello,
I would say that your numbers definitely are way below the benchmarking charts.Just for reference, on a RHEL6.5 system with 2 ConnectX-3Pros connected back to back, minimal tuning (affinity, scaling governor / irq service off) I'm getting below 10usec with UDP packet (ping pong). With VMA offloading I should be seeing around 1usec or less.
I advise using iperf for measuring Bandwidth, but with sockperf I'm also seeing much better results.