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renice(1) [v7 man page]

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 arguments are interpreted as process IDs (by default), process group IDs, user IDs, 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. 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 priority 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)

Check Out this Related Man Page

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

NAME
renice -- alter priority of running processes SYNOPSIS
renice priority [[-p] pid ...] [-g pgrp ...] [-u user ...] renice -n increment [[-p] pid ...] [-g pgrp ...] [-u user ...] DESCRIPTION
renice alters the scheduling priority of one or more running processes. The following 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 specified by their process ID's. Options supported by renice: -g Force who parameters to be interpreted as process group ID's. -n Instead of changing the specified processes to the given priority, interpret the following argument as an increment to be applied to the current priority of each process. -u Force the who parameters to be interpreted as user names. -p Resets the 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 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: 0, the ``base'' scheduling priority; 20, the affected processes will run only when nothing at the base priority wants to; anything negative, the processes will receive a scheduling preference. FILES
/etc/passwd to map user names to user ID's SEE ALSO
nice(1), getpriority(2), setpriority(2) HISTORY
The renice command appeared in 4.0BSD. 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. BSD
June 9, 1993 BSD
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