A survey on quality of service in cloud computing

The quality of service is one of challenges posed by the Cloud Computing. This issue plays an important role in making the Cloud services acceptable to customers, denotes the levels of performance, reliability, and availability offered by Cloud services. Literature has reported many implementations for measuring and ensuring QoS in Cloud Computing systems to achieve better results and meet the needs of producers and consumers. In this paper, we have presented a survey on QoS in Cloud Computing, the mechanisms and methods to guarantee quality of service (QoS) used to Cloud Computing services.