Running 5s test @ http://127.0.0.1:37221/echo
  4 threads and 64 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency   378.91us  152.96us   4.52ms   98.43%
    Req/Sec    43.14k     2.38k   58.00k    90.15%
  Latency Distribution
     50%  365.00us
     75%  374.00us
     90%  383.00us
     99%    0.94ms
  871240 requests in 5.10s, 3.41GB read
Requests/sec: 170836.56
Transfer/sec:    684.27MB