Re: [Xen-users] Dom0 memory

[Simon Hobson <linux@xxxxxxxxxxxxxxxx>]

Jaya Dhanesh <jaya.dhanesh@xxxxxxxxxxxx> wrote:

> Is this the expected behavior and any settings required for Dom0 to reclaim 
> the memory when a vm is destroyed?

I believe accepted good practice isn't to dynamically allocate your Dom0 memory 
- even though it's the default. AIUI, certain memory structures are allocated 
at boot time and sized according to memory available and so you end up with a 
suboptimal set of structures when Dom0 balloons down.
You can specify Dom0 memory through a boot time option (dom0_mem) to Xen - then 
Dom0 starts with a memory allocation that's more appropriate to what it'll need.


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