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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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