Se você verificar a STAT columnimagem acima, verá Ss S S< SN and R+
O que isso indica? Process states. Se sim, então qual é o significado 'Ss S< SN and R+'?
Estes são realmente os estados do processo. Processes afirma que ps indica são:
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.
e os caracteres adicionais são:
< 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
Você também pode encontrar tudo isso procurando no página do homem para ps, especificamente a PROCESS STATE CODESseção.