Re: [Xen-devel] can not use all available memory

[Tim Deegan <tim@xxxxxxx>]

At 12:37 -0800 on 26 Nov (1353933449), Dan Magenheimer wrote:
> > > I could be wrong (and I am confident someone will correct me if I am) but
> > > I think this is because the Citrix memory model assumes there is an
> > > inference-driven policy engine for load-balancing memory across competing
> > > virtual machines ("squeezed").  I suspect squeezed returns unallocated
> > > xen "free" memory to dom0.
> 
> I forgot... it is called Dynamic Memory Control (DMC), not squeezed
> in the XenServer product.

AFAIK XenServer uses dom0_mem= and doesn't balloon com0 after boot time.
The idea of ballooning all free memory into dom0 is a xl-ism, inherited
from xend, and not really a "Citrix" one.  It's useful if you've
installed xen on a machine where dom0 is otherwise your main OS, but not
particularly for a dedicated platform.

Tim.

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