A Review on Performance Evaluation Techniques in Cloud

Cloud computing is the main paradigmshift in the field of information technology era. Itoffers a special feature to cloud users is scalability. This is possible by the key technology calledvirtualization. Virtualization helps to user toachieve the scalability by emulating the physicalmachine into one or more workstation or servers. An analysis of performance of this cloud is to beanalyzed. This paper presents a survey ofperformance evaluation techniques based onqueueing system.