1. 准备文件模版（假设：curl.txt）
time_namelookup: %{time_namelookup}
time_connect: %{time_connect}
time_appconnect: %{time_appconnect}
time_pretransfer: %{time_pretransfer}
time_redirect: %{time_redirect}
time_starttransfer: %{time_starttransfer}
----------
time_total: %{time_total}
2. 使用curl带以下参数请求
curl -w "@curl.txt" -o /dev/null -s https://www.sogo.com
结果：
[@ ~]# curl -w "@curl" -o /dev/null -s https://www.sogo.com time_namelookup: 0.004 time_connect: 0.014 time_appconnect: 0.141 time_pretransfer: 0.141 time_redirect: 0.000 time_starttransfer: 0.153 ---------- time_total: 0.165