chrt man page on YellowDog
Printed from http://www.polarhome.com/service/man/?qf=chrt&af=0&tf=2&of=YellowDog
CHRT(1) Linux User's Manual CHRT(1)
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_OTHER, SCHED_FIFO, SCHED_RR, or SCHED_BATCH) and priority
can be set and retrieved.
OPTIONS
-p, --pid
operate on an existing PID and do not launch a new task
-b, --batch
set scheduling policy to SCHED_BATCH
-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.
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 sched‐
uling scheme.
schedutils Apr 2003 CHRT(1)
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