wrk

- 安装 wrk
  git clone git clone https://github.com/wg/wrk.git wrk
  cd wrk
  make
  sudo cp wrk /usr/local/bin

- wrk 压力测试
  ulimit -n 20000
  wrk -t10 -c1000 -d30s --latency "http://localhost:8888/check?book=google"
  Running 30s test @ http://localhost:8888/check?book=google