On 09/09/2010 09:45 AM, Avi Kivity wrote:
A new format doesn't introduce much additional complexity. We
provide image conversion tool and we can almost certainly provide an
in-place conversion tool that makes the process very fast.
It requires users to make a decision. By the time qed is ready for
mass deployment, 1-2 years will have passed. How many qcow2 images
will be in the wild then? How much scheduled downtime will be
needed? How much user confusion will be caused?
Virtualization is about compatibility. In-guest compatibility first,
but keeping the external environment stable is also important. We
really need to exhaust the possibilities with qcow2 before giving up
on it.
btw, if we were starting from scratch, I'd definitely pick qed over
qcow2. But we aren't starting from scratch (if we did, we wouldn't be
doing x86 either).
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
