1.\" Copyright (c) 2017 Edward Tomasz Napierala 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 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