Avi Kivity wrote: > (logically we would copy all of the data of all block devices, but > that's not very practical, so we assume shared storage).
Speaking of that, if the guest RAM were a memory-mapped file, couldn't that use shared storage too? You'd have to be careful: it would need a distributed filesystem with coherent mappings (i.e. not NFS), but they do exist. I'm guessing that the bulk of time spent in migration/checkpointing is saving the RAM image. Using a memory-mapped file on shared storage for RAM might make that faster. (Or slower!). -- Jamie -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html