Virtualization Technology is an interesting research topic in current cloud computing and service. Using the Virtualization Technology in cloud or cluster computing can obtain a lot of benefits, such as ability to deploy any virtual platforms rapidly, easiness to manage all precious resources, and cost reduction. In order to discover optimal performance for virtual platforms, several well-known virtual machines are evaluated by standard benchmark tools, including HPC Challenge benchmark and NetPIPE program. In our paper, we will analyze significant experiment results that not only demonstrate the adequacy of virtual machines for High Performance Computing, but also present different performance characteristics for virtualization on cloud environment.