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    Command:

    chrt

    
    
    

    SYNOPSIS

           chrt [options] prio command [arg]...
           chrt [options] -p [prio] pid
    
    
    

    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, SCHED_BATCH, or SCHED_IDLE)
           and priority can be set and retrieved.
    
           The SCHED_BATCH policy is supported since Linux 2.6.16. The  SCHED_IDLE
           policy is supported since Linux 2.6.23.
    
    
    

    OPTIONS

           -p, --pid
                  operate on an existing PID and do not launch a new task
    
           -b, --batch
                  set scheduling policy to SCHED_BATCH (Linux specific)
    
           -f, --fifo
                  set scheduling policy to SCHED_FIFO
    
           -i, --idle
                  set schedulng policy to SCHED_IDLE (Linux specific)
    
           -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

           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.
    
    
    

    AVAILABILITY

           The  chrt command is part of the util-linux-ng package and is available
           from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.
    
    
    

    schedutils Apr 2003 CHRT(1)

    
    
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