[Devel] Query on host swapping of guest pages.

Kirill Korotaev dev at parallels.com
Sun Jul 6 22:15:09 PDT 2008

Arn wrote:
> On Sun, Jul 6, 2008 at 2:19 PM, Kirill Korotaev <dev at parallels.com> wrote:
>>> Does OpenVZ support host swapping of guest pages ? That is : if a host
>>> experiences memory pressure, can it swap out some of a guest's (guest
>>> vm) pages and use them ? I assume that if this is possible then when
>>> the guest needs to use the memory again it will be swapped back in ?
>>> Can someone confirm if OpenVz does this ?
>> yes, it does.
>>> Also, can the host change the memory allocation for a guest at runtime
>>> (while the guest is running) ?
>> not sure what you mean...
> Kirill, thanks for the response.
> What I mean is that if we specify that a guest VM has say 512 MB of
> physical RAM when we are initalizing/starting the VM then can we
> change it later while the guest is still running. That is, can I later
> reduce or increase the amount of physical RAM the guest VM has without
> restarting it ?



More information about the Devel mailing list