Limiting jail CPU & memory resources

[Fbsd8]

Mark Felder wrote:
> On Fri, 01 Mar 2013 08:38:05 -0600, <fbsd8 at a1poweruser.com> wrote:
> 
>> Is there anything in 9.1 to Limit jail CPU & memory resources?
> 
> https://wiki.freebsd.org/Hierarchical_Resource_Limits

Read that all ready and left me with more question than answers.
Its experimental and has to be compiled into the kernel.
Need solutions that are provided as part of the base system.
Such as a loadable kernel module.

Can not be risking the security of production jails on some
experimental software.