renice man page on Xenix

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RENICE(8)							     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 process 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 speci‐
       fied by their process ID's.  To force who parameters to be  interpreted
       as process group ID's, a -g may be specified.  To force the who parame‐
       ters 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
       example,

	    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 pro‐
       cesses 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.

4th Berkeley Distribution	 June 24, 1990			     RENICE(8)
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