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xen-users
Re: [Xen-users] understanding dom0 usage memory
Claudinei Matos schrieb:
Hi guys,
My question is if the xen kernel part do try to allocate memory which I
can't see on ps/top utils or if I maybe have a problem with my machines
setup?
Another question is if it's OK to just allocate 128MB to dom0? As I said
the only machine with 128MB is a test machine which is not used this much.
The dom0 memory shown by "free" has nothing to do with your physical ram.
By default, dom0 gets all memory which is not used by domU's.
If you're starting domU's your dom0 memory will shrink until dom0_min_mem
(see xm help, man xm ...). The same way your dom0 memory probably balloons
out if you're stopping domU's.
If you want a static ram size at dom0, you need to add dom0_mem, dom0_max_mem
and/or dom0_min_mem parameters to your grub entry (after xenXXX.gz).
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