Messages in this thread | | | Date | Mon, 13 May 2013 22:02:50 +0300 | From | "Michael S. Tsirkin" <> | Subject | Re: [RFC 2/2] virtio_balloon: auto-ballooning support |
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On Mon, May 13, 2013 at 02:25:11PM -0400, Luiz Capitulino wrote: > On Mon, 13 May 2013 11:34:41 -0300 > Rafael Aquini <aquini@redhat.com> wrote: > > > You're right, and the host's member is used to communicate the configured size > > to guest's balloon device, however, by not changing it when the shrinker causes > > the balloon to deflate will make the balloon thread to be woken up again > > in order to chase the balloon size target again, won't it? Check > > I don't see the balloon thread waking up after the shrinker executes in my > testing. Maybe this is so because it will only wake up when QEMU notifies > a config change.
Well that's also a problem. Need some mechanism to re-inflate balloon when guest memory pressure is down. virtio fs mechanism worth a look?
> But anyway, I'll think how to improve this as suggested by Michael too, as > I seem to be changing num_pages' semantics according to the virtio spec.
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