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renice (1)
  • renice (1) ( Solaris man: Команды и прикладные программы пользовательского уровня )
  • >> renice (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
  • renice (1) ( POSIX man: Команды и прикладные программы пользовательского уровня )
  • renice (8) ( FreeBSD man: Команды системного администрирования )
  • renice (8) ( Linux man: Команды системного администрирования )

  • BSD mandoc
    BSD 4  

    NAME

    renice
    
     - alter priority of running processes
    
     
    

    SYNOPSIS

    renice priority [[-p ] pid ... ] [[-g ] pgrp ... ] [[-u ] user ... ]  

    DESCRIPTION

    Renice alters the scheduling priority of one or more running processes. The following who parameters are interpreted as process ID's, process group ID's, or user names. Renice 'ing a process group causes all processes in the process group to have their scheduling priority altered. Renice 'ing a user causes all processes owned by the user to have their scheduling priority altered. By default, the processes to be affected are specified by their process ID's.

    Options supported by renice

    -g
    Force who parameters to be interpreted as process group ID's.
    -u
    Force the who parameters to be interpreted as user names.
    -p
    Resets the who interpretation to be (the default) process ID's.

    For example,

    renice +1 987 -u daemon root -p 32
    

    would change the priority of process ID's 987 and 32, and all processes owned by users daemon and root.

    Users other than the super-user may only alter the priority of processes they own, and can only monotonically increase their ``nice value'' within the range 0 to PRIO_MAX (20). (This prevents overriding administrative fiats.) The super-user may alter the priority of any process and set the priority to any value in the range PRIO_MIN (-20) to PRIO_MAX Useful priorities are: 20 (the affected processes will run only when nothing else in the system wants to), 0 (the ``base'' scheduling priority), anything negative (to make things go very fast).  

    FILES

    /etc/passwd
    to map user names to user ID's

     

    SEE ALSO

    getpriority(2), setpriority(2)  

    BUGS

    Non super-users can not increase scheduling priorities of their own processes, even if they were the ones that decreased the priorities in the first place.
    The Linux kernel (at least version 2.0.0) and linux libc (at least version 5.2.18) does not agree entirely on what the specifics of the systemcall interface to set nice values is. Thus causes renice to report bogus previous nice values.  

    HISTORY

    The renice command appeared in BSD 4.0  

    AVAILABILITY

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


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    FILES
    SEE ALSO
    BUGS
    HISTORY
    AVAILABILITY


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