Running 5s test @ http://127.0.0.1:39521/echo
  4 threads and 64 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency   378.51us  180.74us   4.94ms   98.94%
    Req/Sec    43.39k     2.19k   57.37k    88.67%
  Latency Distribution
     50%  364.00us
     75%  372.00us
     90%  381.00us
     99%  573.00us
  876183 requests in 5.10s, 3.43GB read
Requests/sec: 171826.40
Transfer/sec:    688.24MB