On 01/30/2013 03:35 AM, Orit Wasserman wrote: > XBZRLE is not effective when migrating to file.
Why not? When doing a live migration to file, the same sector of memory can be visited more than once in the migration stream, and thus compressing the later pages should make the saved file smaller. I'm not sure I buy this argument of XBZRLE being incompatible with migration to file, at least without not more explanation why it fails. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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