Enabled Kernel SamePage Merging (KSM)
This lets the hypervisor system share identical memory pages amongst different processes or virtualized guests. This is done by scanning through the memory finding duplicate pages. The duplicate pair is then merged into a single page, and mapped into both original locations. The page is also marked as copy-on-write, so the kernel will automatically separate them again should one process modify its data.
Signed-off-by: task650 <task650@gmail.com>