Re: resource provisioning

[Chris Wright]

* Phy Prabab (phyprabab@xxxxxxxxx) wrote:
> I would like to know if the linux kernel has a
> mechanism to control computing resources at a uid
> level, which I will call "resource provisioning".  For
> example, I would like to define on a multi cpu machine
> that a list of uid's can not consume more than 1 cpu
> and no more than 1G RAM, irregardless or how many jobs
> they launch on or to the system.

You can already do this in some pretty crude fashion via rlimits and
sched_setaffinity (although the later doesn't have direct pam support
that I know of, so you'd have to manage that on your own).

> So I guess, is this the correct term and is there a
> posibilitity to do this now?

Otherwise, you must look at out of tree patches.  Linux-vserver does
this, CKRM will allow you resource control, and PAGG + other module
(perhaps job?) will give you this as well.

> I would like to avoid the virtual servers method as I
> do not want to carve the machines in question into
> more machines.

Note: the vserver method above doesn't create actual virtual machines,
more like a software construct that you could consider a resource domain.

thanks,
-chris
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