I have made a few posts about VM's with large amount of ram and live migration. After giving it some thought I was thinking I could simply clear what's in ram before the live migration but it looks like the host itself won't let go. I can run the following on the guest which drops the contents of the ram with no issues echo 3 > /proc/sys/vm/drop_caches I then look on the host and the ram is not being released, is there a way I could release the ram from the host so that live migration won't attempt to transfer all the contents, I was really hoping I could just drop cache before a live migration and all would be well. Is there anytype of kvm commands which could do this for me? I appreciate the input!