Benchmarking of bare metal virtualization platforms on commodity hardware
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abstract
In recent years, System Virtualization became a fundamental IT tool, whether it is type-2/hosted virtualization, mostly exploited by end-users in their personal computers, or type-1/bare metal, well established in IT departments and thoroughly used in modern datacenters as the very foundation of cloud computing. Though bare metal virtualization is meant to be deployed on server-grade hardware (for performance, stability and reliability reasons), properly configured desktop-class systems are often used as virtualization “servers”, due to their attractive performance/cost ratio. This paper presents the results of a study conducted on such systems, about the performance of Windows 10 and Ubuntu Server 16.04 guests, when deployed in what we believe are the type-1 platforms most in use today: VMware ESXi, Citrix XenServer, Microsoft Hyper-V, and KVM-based (represented by oVirt and Proxmox). Performance is measured using three synthetic benchmarks: PassMark for Windows, UnixBench for Ubuntu Server, and the cross-platform Flexible I/O Tester. The benchmarks results
may be used to choose the most adequate type-1 platform (performance-wise), depending on guest OS, its performance requisites (CPU-bound, IO-bound, or balanced) and its storage type (local/remote) used.
