模块

指令

变量

$request_time

官网解释
request processing time in seconds with a milliseconds resolution; time elapsed between the first bytes were read from the client and the log write after the last bytes were sent to the client
请求处理时间（秒），毫秒分辨率；从客户端读取第一个字节到最后一个字节发送到客户端后的日志写入之间经过的时间