> The disk is the bottleneck, not memory bandwidth. Hard disks only do > 10-100 MB/sec and SSDs only do a couple 100 MB/sec. Memory copy is > insignificant compared to the I/O activity required to copy out the entire > disk > image, not to mention delaying guest writes until we read the original data > from > the disk.
Not to mention fusion-io card, which are currently at 6GB/s.
