进程状态说明

 进程主状态：D：不可中断的睡眠状态 uninterruptible sleeping(usually IO)R：正在运行，或在队列中的 running or runnable (on run queue)S：处于休眠状态 interruptible sleep (waiting for an event to complete)T：停止状态 stopped by job control signalt：被追踪状态 stopped by debugger during the tracingZ 僵尸进程。defunct ("zombie") process, terminated but not reaped by its parentW：进入内存交换（从内核2.6开始无效）paging (not valid since the 2.6.xx kernel)X：死掉的进程 dead (should never be seen)O：进程正在处理器运行,这个状态从来没有见过B：进程正在等待更多的内存页进程子状态：<：高优先级 high-priority (not nice to other users)N：低优先级 low-priority (nice to other users)L：有些页被锁进内存 has pages locked into memory (for real-time and custom IO)s 包含子进程 is a session leader+ 位于前台的进程组 is in the foreground process groupl 多线程，克隆线程 multi-threaded (using CLONE_THREAD, like NPTL pthreads do)

进程状态图

图一：

图二：