Performance evaluation for a registration service with an energy efficient cloud architecture

Abstract

Cloud computing allows application providers to seamlessly scale services and enables users to adaptively scale usage. Cloud vendors always provide a free service to appeal to more anonymous users. In this paper, we propose a sleep-mode based cloud architecture, in which a free service and an optional registration service are provided on the same server. Regarding the free service as the first service, the registration service as the second optional service and the sleep state as the vacation, we establish an asynchronous multiple-vacation queueing model with a second optional service. We construct a three-dimensional Markov chain to derive the steady-state distribution of the queueing model, and estimate the average response time of anonymous users and the energy saving rate of system. Finally, we provide numerical results to investigate the trade-off between difference performance measures.