When managing your resources, you must be aware of what your goals are.
In addition to resolving resource overcommitment, resource management can help you accomplish the following:
Performance Isolation: Prevent virtual machines from monopolizing resources and guarantee predictable service rates.
Efficient Usage: Exploit undercommitted resources and overcommit with graceful degradation.
Easy Administration: Control the relative importance of virtual machines, provide flexible dynamic partitioning, and meet absolute service-level agreements.