[libvirt] [Qemu-devel] [PATCH v4] XBZRLE delta for live migration of large memory apps
Avi Kivity
avi at redhat.com
Thu Aug 11 09:20:33 UTC 2011
On 08/11/2011 12:16 PM, Daniel P. Berrange wrote:
> On Thu, Aug 11, 2011 at 11:17:09AM +0300, Avi Kivity wrote:
> > On 08/10/2011 10:27 PM, Anthony Liguori wrote:
> > >>This may be acceptable, wait until the entire migration cluster is
> > >>xzbrle capable before enabling it. If not, add a monitor command.
> > >
> > >
> > >1) xzbrle needs to be disabled by default. That way management
> > >tools don't unknowingly enable it by not passing -no-xzbrle.
> >
> > We could hook it to -M, though it's a bit gross.
>
> That would needlessly prevent its use for any existing installed
> guests with a older machine type, which are running in a new QEMU
You could still enable it explicitly; I'm just trying to get it to be
enabled by default.
> Some kind of monitor capabilities seems good to me.
>
Live migration is probably mostly done in managed environments, so I
think you're right.
--
error compiling committee.c: too many arguments to function
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