I don't believe so, but David might have some more insight into that question.
Once the feature is enabled the guest will report pages on its freelist to the hypervisor, and the host/hypervisor will then release them.
I'm not exactly sure what information we can or would want to 'stat' out of this process... A counter for number of pages returned?
Cheers,
Nico
On Tue, Oct 13, 2020, 12:47 PM Michal Privoznik <mprivozn@xxxxxxxxxx> wrote:
On 10/13/20 5:10 PM, Michal Privoznik wrote:
> On 10/13/20 1:35 AM, Nico Pache wrote:
>> gitlab issue: https://gitlab.com/libvirt/libvirt/-/issues/79
>>
>> The virtio-balloon device now has the ability to report free pages
>> back to the hypervisor for reuse by other programs.
Is this something that we might want to report? I mean, we have 'virsh
dommemstat $dom' which under the hood calls:
{"execute":"qom-get","arguments":{"path":"/machine/peripheral/balloon0","property":"guest-stats"},"id":"libvirt-400"}
Michal
