1. A method, comprising: determining, by a processor, a first rate being a rate of change of an execution state of a virtual machine undergoing live migration from a first computer system to a second computer system; determining a second rate being a rate of transfer of the execution state of the virtual machine to the second computer system; and responsive to determining that a ratio of the first rate to the second rate exceeds a first threshold ratio, suspending the transfer of the virtual machine execution state to the second computer system.