Case Study of Performance on the KVM Hypervisorbased Virtualization Related to Native Host

This study examines how file system performance differs between a native operating system and a KVM hypervisor-based virtualized environment.The research uses CentOS 9 as both the native/guest OS and employs Filebench for benchmarking purposes.Tests were conducted on both the native OS and within KVM virtual environments configured including one, two, three, and four virtual machines.The study establishes a mathematical model to compare performance between the native and virtual environments.According to the model, the native operating system exhibits significantly faster performance compared to its virtualized counterpart.Empirical results of the paper confirm this prediction, demonstrating a noticeable drop in file system performance.