4.4BSD/usr/share/man/cat3/nice.0

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NICE(3)                     BSD Programmer's Manual                    NICE(3)

NNAAMMEE
     nniiccee - set program scheduling priority

SSYYNNOOPPSSIISS
     nniiccee(_i_n_t _i_n_c_r);

DDEESSCCRRIIPPTTIIOONN
     TThhiiss iinntteerrffaaccee iiss oobbssoolleetteedd bbyy sseettpprriioorriittyy((22))..

     The nniiccee() function obtains the scheduling priority of the process from
     the system and sets it to the priority value specified in _i_n_c_r. The pri-
     ority is a value in the range -20 to 20.  The default priority is 0; low-
     er priorities cause more favorable scheduling.  Only the super-user may
     lower priorities.

     Children inherit the priority of their parent processes via fork(2).

SSEEEE AALLSSOO
     nice(1),  setpriority(2),  fork(2),  renice(8)

HHIISSTTOORRYY
     A nniiccee() syscall appeared in Version 6 AT&T UNIX.

4th Berkeley Distribution        June 4, 1993                                1