xref: /freebsd/lib/libc/gen/nice.3 (revision 380a989b3223d455375b4fae70fd0b9bdd43bafb)
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32.\"     @(#)nice.3	8.1 (Berkeley) 6/4/93
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34.Dd June 4, 1993
35.Dt NICE 3
36.Os BSD 4
37.Sh NAME
38.Nm nice
39.Nd set program scheduling priority
40.Sh SYNOPSIS
41.Fd #include <unistd.h>
42.Ft int
43.Fn nice "int incr"
44.Sh DESCRIPTION
45.Bf -symbolic
46This interface is obsoleted by setpriority(2).
47.Ef
48.Pp
49The
50.Fn nice
51function obtains the scheduling priority of the process
52from the system and sets it to the priority value specified in
53.Fa incr .
54The priority is a value in the range -20 to 20.
55The default priority is 0; lower priorities cause more favorable scheduling.
56Only the super-user may lower priorities.
57.Pp
58Children inherit the priority of their parent processes via
59.Xr fork 2 .
60.Sh SEE ALSO
61.Xr nice 1 ,
62.Xr fork 2 ,
63.Xr setpriority 2 ,
64.Xr renice 8
65.Sh HISTORY
66A
67.Fn nice
68syscall appeared in
69.At v6 .
70