What process is used to manage the issue of poor performance due to insufficient RAM in virtual machines?

Paging is a memory management scheme that eliminates the need for contiguous allocation of physical memory and thus eliminates the problems of fitting varying sized memory chunks onto the backing store. In the context of virtual machines (VMs), when RAM is insufficient, systems tend to use paging to transfer data between physical memory and disk storage, allowing VMs to operate even with limited RAM by swapping out idle pages to disk.

This process helps manage performance issues that can arise from insufficient RAM, as it enables the virtual machine to use disk space as an overflow area for memory. Although this may result in slower performance compared to direct RAM access, paging provides a solution for maintaining operations under constrained circumstances.

The other options, while related to memory management in virtual environments, serve different purposes. Overcommitment allows VMs to use more memory than the actual physical RAM, but can lead to performance degradation if not managed correctly. Memory ballooning is a technique where the hypervisor can reclaim unused memory from virtual machines, but this is contingent on the hypervisor's management capabilities and awareness of VM memory usage. Dynamic memory allocation refers to the adjustment of memory allocation for VMs based on their requirements, but it is not a direct solution to mitigate poor performance caused by insufficient RAM in the same way