Re: [libvirt] [v7 00/10] Support cache tune in libvirt
On Sun, Feb 19, 2017 at 12:01:57PM -0300, Marcelo Tosatti wrote:
How does the management software query the amount of allocatable cache
again?
Section from another discussion:
> The second case is necessary to get updated free space information.
>
Just VM initialization time could be enough as virConnectGetCapabilities
would just know the total and free size would be reported in an API (if
I rememer the discussion correctly)
Martin
Yes, i think this is missing because the interface was designed
with only libvirt in mind: the "reserved" field returns the amount of
cache reserved only by VMs.
So if there is another application on the same L3 socket
with a cache reservation, "reserved" fails to report it.
Eli can you expose the amount of free allocatable cache space
(where non-free includes space used by other reservations) in a
'free_space' field in the cache output of virConnectGetCapabilities?