What benefit does using memory reuse in virtual machines provide?

Using memory reuse in virtual machines primarily provides the benefit of reducing the need for additional physical memory. This occurs through a technique known as memory overcommitment, where multiple virtual machines share the same physical memory resources more efficiently.

When virtual machines operate, they often do not use all of their allocated memory at once, allowing the hypervisor to intelligently manage and allocate the physical memory to various VMs as needed. This means that even with multiple VMs running, not all of them require their maximum memory capacity simultaneously. Consequently, physical memory is conserved because it can be reused among different VMs, allowing for cost savings in hardware and better resource utilization.

While improving performance can result from optimized memory management, the primary advantage of memory reuse specifically relates to minimizing the need for additional physical memory. It allows organizations to run more VMs on the same hardware without upgrading the physical infrastructure.