2.11BSD#431 - /usr/man/cat3/nice.0

NICE(3C)	    UNIX Programmer's Manual		 NICE(3C)


NAME
     nice - set program priority

SYNOPSIS
     nice(incr)

DESCRIPTION
     This interface is obsoleted by setpriority(2).

     The scheduling priority of the process is augmented by incr.
     Positive priorities get less service than normal.	Priority
     10 is recommended to users who wish to execute long-running
     programs without flak from the administration.

     Negative increments are ignored except on behalf of the
     super-user.  The priority is limited to the range -20 (most
     urgent) to 20 (least).

     The priority of a process is passed to a child process by
     fork(2).  For a privileged process to return to normal
     priority from an unknown state, nice should be called suc-
     cessively with arguments -40 (goes to priority -20 because
     of truncation), 20 (to get to 0), then 0 (to maintain compa-
     tibility with previous versions of this call).

SEE ALSO
     nice(1), setpriority(2), fork(2), renice(8)


Printed 11/26/99	   May 9, 1985				1