一、进程状态
D:uninterruptible sleep (usually IO)
R:running or runnable (on run queue)
S:interruptible sleep...dead (should never be seen)
Z:defunct ("zombie") process, terminated but not - reaped by its parent
1、R...很多操作系统教科书将正在CPU上执行的进程定义为RUNNING状态、而将可执行但是尚未被调度执行的进程定义为READY状态,这两种状态在linux下统一为 TASK_RUNNING状态。...linux系统启动后,第一个被创建的用户态进程就是init进程。...系统之常用命令
ps -eo stat,pid,user,%cpu,%mem,time,cmd
ps -eo stat,pid,user,%cpu,%mem,time,cmd | grep -e '^[R]