NICE(2)                 GENIX Programmer's Manual                 NICE(2)



      NAME
           nice - set program priority

      SYNOPSIS
           nice(incr)

      DESCRIPTION
           The scheduling priority of the process is augmented by incr.   Posi-
           tive priorities get less service than normal.  Priority 10 is recom-
           mended 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 unk-
           nown state, nice should be called successively  with  arguments  -40
           (goes to priority -20 because of truncation), 20 (to get to 0), then
           0 (to maintain compatibility with previous versions of this call).

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































      Printed 11/16/83                                                        1