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Annotation of 43BSDReno/lib/libc/gen/nice.3, revision 1.1.1.1

1.1       root        1: .\" Copyright (c) 1980 Regents of the University of California.
                      2: .\" All rights reserved.  The Berkeley software License Agreement
                      3: .\" specifies the terms and conditions for redistribution.
                      4: .\"
                      5: .\"    @(#)nice.3      6.1 (Berkeley) 5/9/85
                      6: .\"
                      7: .TH NICE 3C "May 9, 1985"
                      8: .UC 4
                      9: .SH NAME
                     10: nice \- set program priority
                     11: .SH SYNOPSIS
                     12: .B nice(incr)
                     13: .SH DESCRIPTION
                     14: .ft B
                     15: This interface is obsoleted by setpriority(2).
                     16: .ft R
                     17: .PP
                     18: The scheduling
                     19: priority of the process is augmented by
                     20: .IR incr .
                     21: Positive priorities get less
                     22: service than normal.
                     23: Priority 10 is recommended to users
                     24: who wish to execute long-running programs
                     25: without flak from the administration.
                     26: .PP
                     27: Negative increments are ignored except on behalf of 
                     28: the super-user.
                     29: The priority is limited to the range
                     30: \-20 (most urgent) to 20 (least).
                     31: .PP
                     32: The priority of a process is
                     33: passed to a child process by
                     34: .IR fork (2).
                     35: For a privileged process to return to normal priority
                     36: from an unknown state,
                     37: .I nice
                     38: should be called successively with arguments
                     39: \-40 (goes to priority \-20 because of truncation),
                     40: 20 (to get to 0),
                     41: then 0 (to maintain compatibility with previous versions
                     42: of this call).
                     43: .SH "SEE ALSO"
                     44: nice(1), setpriority(2), fork(2), renice(8)

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