Running 5s test @ http://127.0.0.1:39649/echo
  4 threads and 256 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency     1.53ms  520.79us  14.10ms   98.58%
    Req/Sec    42.76k     1.83k   52.17k    78.00%
  Latency Distribution
     50%    1.48ms
     75%    1.52ms
     90%    1.57ms
     99%    2.49ms
  850618 requests in 5.02s, 3.33GB read
Requests/sec: 169558.46
Transfer/sec:    679.15MB