xref: /freebsd/share/man/man4/rctl.4 (revision d8a0fe102c0cfdfcd5b818f850eff09d8536c9bc)
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25.\" $FreeBSD$
26.Dd May 28, 2017
27.Dt RCTL 4
28.Os
29.Sh NAME
30.Nm rctl
31.Nd resource limits
32.Sh SYNOPSIS
33To compile this driver into the kernel,
34place the following line in the
35kernel configuration file:
36.Bd -ragged -offset indent
37.Cd "options RACCT"
38.Cd "options RCTL"
39.Ed
40.Sh DESCRIPTION
41The
42.Nm
43subsystem provides a flexible resource limits mechanism,
44controlled by a set of rules that can be added or removed at runtime
45using the
46.Xr rctl 8
47management utility.
48.Sh LOADER TUNABLES
49Tunables can be set at the
50.Xr loader 8
51prompt, or
52.Xr loader.conf 5 .
53.Bl -tag -width indent
54.It Va kern.racct.enable: No 1
55Enable
56.Nm .
57This defaults to 1, unless
58.Cd "options RACCT_DEFAULT_TO_DISABLED"
59is set in the kernel configuration file.
60.El
61.Sh SEE ALSO
62.Xr rctl.conf 5 ,
63.Xr rctl 8
64.Sh HISTORY
65The
66.Nm
67subsystem first appeared in
68.Fx 9.0 .
69.Sh AUTHORS
70The
71.Nm
72subsystem was developed by
73.An Edward Tomasz Napierala Aq Mt trasz@FreeBSD.org
74under sponsorship from the FreeBSD Foundation.
75