International Journal of Engineering and Advanced Technology (IJEAT)
Cloud computing is an emerging infrastructure paradigm that allows efficient maintenance of cloud with efficient uses of servers. Virtualization is a key element in cloud environment as it provides distribution of computing resources. This distribution results in cost and energy reduction, thus making efficient utilization of physical resources. Thus resource sharing and use of virtualization allows improved performance for demanding scientific computing workloads. Number of data centers and physical servers are underutilized so they are used inefficiently. So performance evaluation and its enhancement in virtualized environment like public and private cloud are the challenging issues. Performance of cloud environment is dependent on CPU & memory utilization, Network and I/O disk operations.