GNU/Linux man pages
Livre :
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Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 5.6 |
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chrt(1) |
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chrt − manipulate real-time attributes of a process
chrt [options] [prio] [pid | command [arg]...]
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.
-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
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]
A user must possess CAP_SYS_NICE to change the scheduling attributes of a process. Any user can retrieve the scheduling information.
Written by Robert M. Love.
Report bugs to <rml@tech9.net>.
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.
taskset(1), nice(1), renice(1)
See sched_setscheduler(2) for a description of the Linux scheduling scheme.
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chrt(1) | |