# 2.11BSD#431 - /usr/man/cat8/renice.0

    RENICE(8)	    UNIX Programmer's Manual		RENICE(8)

    NAME
         renice - alter priority of running processes

    SYNOPSIS
         renice priority [ [ -p ] pid ... ] [ [ -g ] pgrp ... ] [ [
         -u ] user ... ]

    DESCRIPTION
         Renice alters the scheduling priority of one or more running
         processes.  The who parameters are interpreted as process
         ID's, process group ID's, or user names.  Renice'ing a pro-
         cess group causes all processes in the process group to have
         their scheduling priority altered. Renice'ing a user causes
         all processes owned by the user to have their scheduling
         priority altered.	By default, the processes to be affected
         are specified by their process ID's.  To force who parame-
         ters to be interpreted as process group ID's, a -g may be
         specified.  To force the who parameters to be interpreted as
         user names, a -u may be given.  Supplying -p will reset who
         interpretation to be (the default) process ID's.  For exam-
         ple,

    	  renice +1 987 -u daemon root -p 32

         would change the priority of process ID's 987 and 32, and
         all processes owned by users daemon and root.

         Users other than the super-user may only alter the priority
         of processes they own, and can only monotonically increase
         their ``nice value'' within the range 0 to PRIO_MAX (20).
         (This prevents overriding administrative fiats.) The super-
         user may alter the priority of any process and set the
         priority to any value in the range PRIO_MIN (-20) to
         PRIO_MAX.	Useful priorities are: 20 (the affected processes
         will run only when nothing else in the system wants to), 0
         (the ``base'' scheduling priority), anything negative (to
         make things go very fast).

    FILES
         /etc/passwd    to map user names to user ID's

    SEE ALSO
         getpriority(2), setpriority(2)

    BUGS
         Non super-users can not increase scheduling priorities of
         their own processes, even if they were the ones that
         decreased the priorities in the first place.

    Printed 11/26/99	November 17, 1996			1

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