Running 5s test @ http://127.0.0.1:42881/echo
  4 threads and 64 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency   444.98us  252.61us   8.85ms   95.33%
    Req/Sec    37.47k     6.71k  130.26k    99.50%
  Latency Distribution
     50%  420.00us
     75%  432.00us
     90%  447.00us
     99%    1.35ms
  749471 requests in 5.10s, 2.93GB read
Requests/sec: 146975.91
Transfer/sec:    588.70MB