Re: [Xen-users] Allocate more Memory than real

["Artur Baruchi" <mail.baruchi@xxxxxxxxx>]

I did the same thing using xen 3.2 latter. I retrieve some memory and
create new guests. The sum of all domU's memory is greater than real
memory.
And, I saw something nice... when I return some memory to xen the
guest see this and update the memory available to the SO, for example,
If the guest has 1gb and I use commands like "free" or "top", I see
1gb. When I return 512M to xen, this commands show me an updated value
of 512M of available memory.

So... Does xen implement some kind of Hotplug Memory for
paravirtualized guests?

And thanks for the last paper... I got some ideas from there...

Att.
Artur Baruchi


On Sat, Sep 13, 2008 at 8:43 PM, Todd Deshane <deshantm@xxxxxxxxx> wrote:
> Xen 3.3 supports memory overcommitment now.
>
> see:
> http://blog.xen.org/index.php/2008/08/27/xen-33-feature-memory-overcommit/
>
> Cheers,
> Todd
>
>
> --
> Todd Deshane
> http://todddeshane.net
> check out our book: http://runningxen.com
>

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