1:chrt
From Linux Man Pages
chrt - manipulate real-time attributes of a process
chrt [options] [prio] [pid | command [arg]...]
Contents |
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
-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
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.
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 MER-
CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
RELATED
taskset(1), nice(1), renice(1) See sched_setscheduler(2) for a description of the Linux scheduling scheme.