man chrt (Commandes) - manipulate real-time attributes of a process
NAME
chrt - manipulate real-time attributes of a process
SYNOPSIS
chrt [options] [prio] [pid | command [arg]...]
DESCRIPTION
chrt(1) sets or retrieves the real-time scheduling attributes of an existing PID or runs COMMAND with the given attributes. Both policy (one of SCHED_FIFO, SCHED_RR, or SCHED_OTHER) and priority can be set and retrieved.
OPTIONS
- -p, --pid
- operate on an existing PID and do not launch a new task
USAGE
- The default behavior is to run a new command::
- chrt [prio] -- [command] [arguments]
- You can also retrieve the real-time attributes of an existing task:
- chrt -p [pid]
- Or set them:
- chrt -p [prio] [pid]
PERMISSIONS
A user must possess CAP_SYS_NICE to change the scheduling attributes of a process. Any user can retrieve the scheduling information.
AUTHOR
Written by Robert M. Love.
REPORTING BUGS
Report bugs to <rml@tech9.net>.
COPYRIGHT
Copyright © 2004 Robert M. Love
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
SEE ALSO
taskset(1), nice(1), renice(1) See sched_setscheduler(2) for a description of the Linux scheduling scheme.
- -f, --fifo
- set scheduling policy to SCHED_FIFO
- -m, --max
- show minimum and maximum valid priorities, then exit
- -o, --other
- set policy scheduling policy to SCHED_OTHER
- -r, --rr
- set scheduling policy to SCHED_RR (the default)
- -h, --help
- display usage information and exit
- -v, --version
- output version information and exit