[Devel] Re: [ANNOUNCE] first stable release of OpenVZ kernel virtualization solution

[Ingo Molnar]

* Ingo Molnar <mingo at elte.hu> wrote:

> by 'swapping madly' i dont mean lowmem pressure, but plain userspace 
> VM pressure. I fear it's not flexible enough to not allow for that. 
> I.e. it would be nice to extend the beancounters to let userspace to 
> _swap_ instead of exposing it to a hard limit.

maybe i'm banging on open doors, but the same would be the case not only 
for userspace-VM overcommit, but also for dirty data. I.e. there should 
be (already is?) a per-instance 'dirty data threshold', to not force 
other instances into waiting for writeout/swapout to happen.

or does the OVZ method assume a totally swapless system?

	Ingo