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RENICE(1)			 User Commands			     RENICE(1)

NAME
       renice - alter priority of running processes

SYNOPSIS
       renice [-n] priority [-g|-p|-u] identifier...

DESCRIPTION
       renice alters the scheduling priority of one or more running processes.
       The first argument is the priority value to be used.  The  other	 argu‐
       ments  are  interpreted as process IDs (by default), process group IDs,
       user IDs, or user names.	 renice'ing a process group  causes  all  pro‐
       cesses  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.

OPTIONS
       -n, --priority priority
	      Specify  the  scheduling	priority  to  be used for the process,
	      process group, or user.  Use of the option -n or	--priority  is
	      optional, but when used it must be the first argument.

       -g, --pgrp
	      Interpret the succeeding arguments as process group IDs.

       -p, --pid
	      Interpret the succeeding arguments as process IDs (the default).

       -u, --user
	      Interpret the succeeding arguments as usernames or UIDs.

       -V, --version
	      Display version information and exit.

       -h, --help
	      Display help text and exit.

EXAMPLES
       The  following  command would change the priority of the processes with
       PIDs 987 and 32, plus all processes owned by the users daemon and root:

	      renice +1 987 -u daemon root -p 32

NOTES
       Users other than the superuser may only alter the priority of processes
       they  own.   Furthermore,  an  unprivileged  user can only increase the
       ``nice value'' (i.e., choose a lower priority)  and  such  changes  are
       irreversible  unless  (since  Linux  2.6.12)  the  user	has a suitable
       ``nice'' resource limit (see ulimit(1) and getrlimit(2)).

       The superuser may alter the priority of any process and set the	prior‐
       ity  to	any  value  in the range -20 to 19.  Useful priorities are: 19
       (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 IDs

SEE ALSO
       nice(1), getpriority(2), setpriority(2), credentials(7), sched(7)

HISTORY
       The renice command appeared in 4.0BSD.

AVAILABILITY
       The renice command is part of the util-linux package and	 is  available
       from Linux Kernel Archive ⟨https://www.kernel.org/pub/linux/utils/util-
       linux/⟩.

util-linux			   July 2014			     RENICE(1)

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