[ovirt-users] Hot Memory add and Physical Memory guaranteed

[Martin Sivak]

And I believe the virt team is working on "hotplug" support for the
guaranteed memory so mom will start changing the balloon size
accordingly.

Michal: is there a bug tracking that?

Regards,

Martin Sivak

On Fri, Jun 23, 2017 at 11:16 AM, Milan Zamazal <mzamazal at redhat.com> wrote:
> "Luca 'remix_tj' Lorenzetto" <lorenzetto.luca at gmail.com> writes:
>
>> i just tested the memory hot add to a vm. This vm had 2048 MB. I set
>> the new memory to 2662 MB.
>> I logged into the vm and i've seen that hasn't been any memory change,
>> even if i said to the manager to apply memory expansion immediately.
>>
>> Memory shown by free -m is 1772 MB.
>
> [...]
>
>> forgot to say that is a RHEL 7 VM and has the memory baloon device enabled.
>
> This is normal with memory balloon enabled – memory balloon often
> "consumes" the hot plugged memory, so you can't see it.
>
> Regards,
> Milan
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