Jail limits

[Espartano]

Hi folk, sorry for my bat english, i have a question:

there is any initiative to implements limits (like cpu limits, memory
limits....) inside a jail ?

or already exists anything to do it ?

thanks a lot.

-- 
"Linux is for people who hate Windows, BSD is for people who love UNIX".
"Social Engineer -> Because there is no patch for human stupidity"
"The Unix Guru's View of Sex unzip ; strip ; touch ; grep ; finger ;
mount ; fsck ; more ; yes ; umount ; sleep."
"Documentation is like sex: when it is good, it is very, very good;
and when it is bad, it is better than nothing."