Linux進程狀態 ( Linux Process State Codes)

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進程狀態碼及說明:

STATE代碼	說明
D	不可中斷的睡眠. 通常是處於I/O之中.
R	運行中/可運行. 正處於運行隊列中.
S	可中斷的睡眠. 等待某事件發生.
T	已停止. 可能是因為shell作業控制或進程正被調試.
W	分頁中. 不適用於核心2.6.xx及以後的版本.
X	死亡. 再也不會出現.
Z	死/殭屍進程.
<	高優先順序任務.
N	低優先順序任務.
L	有分頁記憶體被鎖定到記憶體中. 用於即時任務和自訂I/O.
s	會話期首進程.
l	屬多線程進程. 就像pthreads那樣的複製線程.
+	處於前台進程組.

 

 

 

 

 

 

 

 

 

 

 

 

英語原文:

PROCESS STATE CODES        Here are the different values that the s, stat and state output specifiers (header "STAT" or "S") will        display to describe the state of a process:                D    uninterruptible sleep (usually IO)                R    running or runnable (on run queue)                S    interruptible sleep (waiting for an event to complete)                T    stopped, either by a job control signal or because it is being traced                W    paging (not valid since the 2.6.xx kernel)                X    dead (should never be seen)                Z    defunct ("zombie") process, terminated but not reaped by its parent        For BSD formats and when the stat keyword is used, additional characters may be displayed:                <    high-priority (not nice to other users)                N    low-priority (nice to other users)                L    has pages locked into memory (for real-time and custom IO)                s    is a session leader                l    is multi-threaded (using CLONE_THREAD, like NPTL pthreads do)                +    is in the foreground process group

 

 

 

 

 

 

 

 

 

 

 

 

 

 

參考:
   1. 線上手冊: http://man7.org/linux/man-pages/man1/ps.1.html

 

Linux進程狀態 ( Linux Process State Codes)