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RENICE(8)		FreeBSD	System Manager's Manual		     RENICE(8)

NAME
     renice -- alter priority of running processes

SYNOPSIS
     renice priority [[-gpu] target]
     renice -n increment [[-gpu] target]

DESCRIPTION
     The renice	utility	alters the scheduling priority of one or more running
     processes.	 The following target parameters are interpreted as process
     ID's (the default), process group ID's, user ID's or user names.  The
     renice'ing	of a process group causes all processes	in the process group
     to	have their scheduling priority altered.	 The renice'ing	of a user
     causes all	processes owned	by the user to have their scheduling priority
     altered.

     The following options are available:

     -n	     Instead of	changing the specified processes to the	given prior-
	     ity, interpret the	following argument as an increment to be ap-
	     plied to the current priority of each process.

     -g	     Interpret target parameters as process group ID's.

     -p	     Interpret target parameters as process ID's (the default).

     -u	     Interpret target parameters as user names or user ID's.

     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), any-
     thing negative (to	make things go very fast).

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

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

	   renice +1 987 -u daemon root	-p 32

SEE ALSO
     nice(1), rtprio(1), getpriority(2), setpriority(2)

STANDARDS
     The renice	utility	conforms to IEEE Std 1003.1-2001 ("POSIX.1").

HISTORY
     The renice	utility	appeared in 4.0BSD.

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

FreeBSD	13.0		       October 27, 2020			  FreeBSD 13.0

NAME | SYNOPSIS | DESCRIPTION | FILES | EXAMPLES | SEE ALSO | STANDARDS | HISTORY | BUGS

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