wrk压测

以前都是用jmeter压测的，最近学了下wrk.

1. git clone https://github.com/wg/wrk.git
2. cd wrk/
3. make
4. cp wrk /usr/local/bin/
5. 验证wrk是否安装成功。命令行输入wrk能看到命令提示信息则说明安装成功。

Usage: wrk  
Options:
-c, --connections  Connections to keep open(连接数量)
-d, --duration  Duration of test (持续时间)
-t, --threads  Number of threads to use (线程数量)

-s, --script  Load Lua script file
-H, --header  Add header to request
--latency Print latency statistics
--timeout  Socket/request timeout
-v, --version Print version details

Numeric arguments may include a SI unit (1k, 1M, 1G)
Time arguments may include a time unit (2s, 2m, 2h)

6. 压测，请根据实际情况修改条件.
wrk -c 100 -d 1h -t 100 https://www.baidu.com/