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Description
Live migration allows the migration of virtual machines from one physical machine to another to perform critical operations such as load balancing, power saving, fault tolerance, and maintenance. Regardless of the method used to perform live migration (i.e., pre-copy, post-copy, hybrid), this process incurs some costs that need to be considered to evaluate its performance. These costs include downtime, migration time, network overhead, CPU utilization overhead, and power consumption overhead.