On Fri, 2006-08-18 at 07:45 -0700, Dave Hansen wrote:
> On Fri, 2006-08-18 at 12:08 +0400, Andrey Savochkin wrote:
> >
> > A) Have separate memory management for each container,
> > with separate buddy allocator, lru lists, page replacement mechanism.
> > That implies a considerable overhead, and the main challenge there
> > is sharing of pages between these separate memory managers.
>
> Hold on here for just a sec...
>
> It is quite possible to do memory management aimed at one container
> while that container's memory still participates in the main VM.
>
> There is overhead here, as the LRU scanning mechanisms get less
> efficient, but I'd rather pay a penalty at LRU scanning time than divide
> up the VM, or coarsely start failing allocations.
This could of course be solved with one LRU per container, which is how
the CKRM memory controller implemented things about a year ago.
/ magnus
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