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Annotation of 43BSDReno/usr.bin/renice/renice.8, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1983 The Regents of the University of California.
        !             2: .\" All rights reserved.
        !             3: .\"
        !             4: .\" Redistribution and use in source and binary forms are permitted provided
        !             5: .\" that: (1) source distributions retain this entire copyright notice and
        !             6: .\" comment, and (2) distributions including binaries display the following
        !             7: .\" acknowledgement:  ``This product includes software developed by the
        !             8: .\" University of California, Berkeley and its contributors'' in the
        !             9: .\" documentation or other materials provided with the distribution and in
        !            10: .\" all advertising materials mentioning features or use of this software.
        !            11: .\" Neither the name of the University nor the names of its contributors may
        !            12: .\" be used to endorse or promote products derived from this software without
        !            13: .\" specific prior written permission.
        !            14: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            15: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            16: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            17: .\"
        !            18: .\"    @(#)renice.8    6.4 (Berkeley) 6/24/90
        !            19: .\"
        !            20: .UC 7
        !            21: .TH RENICE 8 "June 24, 1990"
        !            22: .UC 4
        !            23: .SH NAME
        !            24: renice \- alter priority of running processes
        !            25: .SH SYNOPSIS
        !            26: .B renice
        !            27: priority [ [
        !            28: .B \-p
        !            29: ] pid ... ] [ [
        !            30: .B \-g
        !            31: ] pgrp ... ] [ [
        !            32: .B \-u
        !            33: ] user ... ]
        !            34: .SH DESCRIPTION
        !            35: .I Renice
        !            36: alters the 
        !            37: scheduling priority of one or more running processes.
        !            38: The
        !            39: .I who
        !            40: parameters are interpreted as process ID's, process group
        !            41: ID's, or user names.
        !            42: .IR Renice 'ing
        !            43: a process group causes all processes in the process group
        !            44: to have their scheduling priority altered.  
        !            45: .IR Renice 'ing
        !            46: a user causes all processes owned by the user to have
        !            47: their scheduling priority altered.
        !            48: By default, the processes to be affected are specified by
        !            49: their process ID's.  To force 
        !            50: .I who
        !            51: parameters to be interpreted as process group ID's, a
        !            52: .B \-g 
        !            53: may be specified.  To force the
        !            54: .I who
        !            55: parameters to be interpreted as user names, a
        !            56: .B \-u
        !            57: may be given.  Supplying
        !            58: .B \-p
        !            59: will reset 
        !            60: .I who
        !            61: interpretation to be (the default) process ID's.
        !            62: For example,
        !            63: .sp
        !            64:        renice +1 987 -u daemon root -p 32 
        !            65: .sp
        !            66: would change the priority of process ID's 987 and 32, and
        !            67: all processes owned by users daemon and root.
        !            68: .PP
        !            69: Users other than the super-user may only alter the priority of
        !            70: processes they own,
        !            71: and can only monotonically increase their ``nice value''
        !            72: within the range 0 to PRIO_MAX (20).
        !            73: (This prevents overriding administrative fiats.)
        !            74: The super-user
        !            75: may alter the priority of any process
        !            76: and set the priority to any value in the range PRIO_MIN (\-20)
        !            77: to PRIO_MAX.
        !            78: Useful priorities are:
        !            79: 20 (the affected processes will run only when nothing else
        !            80: in the system wants to),
        !            81: 0 (the ``base'' scheduling priority),
        !            82: anything negative (to make things go very fast).
        !            83: .SH FILES
        !            84: /etc/passwd    to map user names to user ID's
        !            85: .SH SEE ALSO
        !            86: getpriority(2), setpriority(2)
        !            87: .SH BUGS
        !            88: Non super-users can not increase scheduling priorities of their own processes,
        !            89: even if they were the ones that decreased the priorities in the first place.

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