Running 5s test @ http://127.0.0.1:56739/echo
  4 threads and 256 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency     1.82ms  494.30us  11.68ms   96.71%
    Req/Sec    34.75k     2.25k   36.73k    89.00%
  Latency Distribution
     50%    1.74ms
     75%    1.85ms
     90%    2.00ms
     99%    4.03ms
  691618 requests in 5.02s, 2.73GB read
Requests/sec: 137795.76
Transfer/sec:    556.79MB