A system and computer program product for migrating contents of a memory on a virtual machine. The system includes a source virtual machine executing on a host system, the source virtual machine including a memory. The system also includes a hypervisor executing on the host system. The hypervisor is in communication with the source virtual machine and includes instructions. The instructions facilitate establishing communication from the source virtual machine to a target virtual machine, the source virtual machine including a memory. The contents of the memory on the source virtual machine are transmitted to the target virtual machine. The contents of the memory on the source virtual machine include a plurality of pages. It is determined if all or a subset of the pages have been modified on the source virtual machine subsequent to being transmitted to the target virtual machine. If it is determined that all or a subset of the pages have been modified, then the modified pages, including a page location and page content for each of the modified pages, are transmitted to the target virtual machine. The determining and transmitting the modified pages continues until the number of remaining pages that have been modified is less than a threshold. The virtual machine is then paused the remaining pages are transmitted to the target virtual machine.