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RCTL(4) Device Drivers Manual RCTL(4)

rctl — resource limits

To compile this driver into the kernel, place the following line in the kernel configuration file:

options RACCT
options RCTL

The rctl subsystem provides a flexible resource limits mechanism, controlled by a set of rules that can be added or removed at runtime using the rctl(8) management utility.

Tunables can be set at the loader(8) prompt, or loader.conf(5).

kern.racct.enable: 1
Enable rctl. This defaults to 1, unless options RACCT_DEFAULT_TO_DISABLED is set in the kernel configuration file.

rctl.conf(5), rctl(8)

The rctl subsystem first appeared in FreeBSD 9.0.

The rctl subsystem was developed by Edward Tomasz Napierala <trasz@FreeBSD.org> under sponsorship from the FreeBSD Foundation.

May 28, 2017 FreeBSD-12.0