NAME

renice − alter nice value of running processes

SYNOPSIS

/usr/etc/renice niceval pid...

/usr/etc/renice niceval [ −p pid... ] [ −g pgrp... ] [ −u username... ]

DESCRIPTION

renice changes the “nice value” of running processes to niceval. Changing the nice value of a process changes its scheduling priority, see nice(1). 

Users other than the super-user may only alter the nice value of processes they own, and can only monotonically increase their nice value within the range 0 through 19.  (This prevents overriding administrative controls.)  The super-user may alter the nice value of any process, setting it to any value in the range  −20 through 19. 

Some interesting nice values are: 19 (the affected processes will run only when nothing else in the system wants to), 0 (the default nice value), and any negative value (to make things go faster). 

OPTIONS

By default, the processes to be affected are specified by their process IDs. 

−p pid ...
Specify a list of process IDs. 

−g pgrp ...
Specify a list of process group IDs.  The processes in the specified process groups have their nice values altered. 

−u user ...
Specify a list of user IDs or usernames.  All processes owned by each user have their nice values altered. 

FILES

/etc/passwd to map user names to user ID’s

SEE ALSO

pstat(8)

Sun Release 4.0  —  Last change: 17 July 1989