ps命令查看进程启动及运行时间-linux

有时候排查故障，可能需要查看下某个服务进程的启动时间与运行时间，如果进程由supervisor启动，就好办了。

supervisor查看服务启动时间：
supervisorctl status 

如果程序没有使用supervisor启动，该怎么查看呢？

man命令查看下ps参数含义

# man ps|egrep 'lstart|etime'
       running during the entire lifetime of a process.  This is not ideal,
       %t     etime    ELAPSED
       args, cmd, comm, command, fname, ucmd, ucomm, lstart, bsdstart, start.
                             to be fully destroyed by its parent.  Sometimes
                             lstart, start, start_time, and stime.
                             lifetime of the process.  (see %cpu).
       etime       ELAPSED   elapsed time since the process was started, in
       etimes      ELAPSED   elapsed time since the process was started, in
       lstart      STARTED   time the command started.  See also
                             lstart, bsdstart, start_time, and stime.
                             otherwise.  See also bsdstart, start, lstart,

可以看到官方解释：
etime指: 进程启动后运行或流逝的时间
lstart指: 进程启动精确时间

查看服务或进程的启动时间

# ps -eo pid,lstart,etime,cmd |grep mysql
30244 Thu Feb  8 18:27:02 2018 103-16:22:50 /bin/mysqld_safe...

或

# ps -eo lstart,etime,cmd |grep pid
30244 Thu Feb  8 18:27:02 2018 103-16:23:27  common

参考：JAMIN ZHANG

• 本文作者： GaryWu
• 本文链接： https://garywu520.github.io/2018/05/23/ps命令查看进程启动及运行时间-linux/
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