Re: [Xen-users] xenballooning

[Simon Hobson <linux@xxxxxxxxxxxxxxxx>]

George Shuklin wrote:

> But how we can add more memory to guest VM in realtime, than was at boot
> time?
>
> Can we somehow make balloon inflated at start time? (F.e. VM starts with
> memory = 512Mb and balloon inflating to +512Mb).
Yes, you can do that, and it took me a while to find out how. In your 
config file put something like this :
memory  = '512'
maxmem  = '1024'

As I understnad it, it will start the guest with (in this example) 
512M of RAM, but you can use "xm mem-set nnn" to increase that within 
the bounds of the maxmem setting. If increasing, the extra memory is 
hotplugged into the client. When decreasing, I assume there is a 
process for getting the client to free up the memory before it is 
hotplug removed.
--
Simon Hobson

Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
author Gladys Hobson. Novels - poetry - short stories - ideal as
Christmas stocking fillers. Some available as e-books.

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