[Xen-users] Memory allocation

["Eric S. Johansson" <esj@xxxxxxxxxx>]

Upgraded my xen box to a gb of ram and had a bit of trouble expanding 
usage with baloon and maxmem.  I figure I'm just being blond so I cut 
straight to teh chase and tweek the memory settings in the configuration 
files for each vm.
everything goes fine except for the last domU.  can't allocate memory is 
the error reported.  I check my math and I'm 5mb under my physical 
memory. I go through a couple of small reductions of memory usage to no 
avail.  after a bigger decrease on the last domU memory allocation, all 
domU's run.
1) how can one determine how much memory is really available for domU's?
2) how much memory is really used by a domU?
3) in the furture, could memory be allocated as a percentage of total 
memory?

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