[ckrm-tech] phys memory controller

[Marc E. F. <mef@CS.Princeton.EDU>]

Hi Chandra,

Could you explain again how your physical memory controller will work? From
what I remember, there will be a specified quota that is only enforced when
the system runs into memory pressure. Is that right? Is there a way to also
specify a hard upperbound?

Also, would it make sense to extend your memory controller to support both
phys and virtual memory limits. The reason I ask is that we do have
researchers whose experiements run out of control and fill up our swap
space. Our PlanetLab nodes are typically hosed when this happens.

Thanks,
Marc