Priority Based Scheduling in a Federated Cloud Environment 1

Abstract: Scheduling is a process of allocating available resources to the submitted requests. The main function of scheduling is to optimize the resource utilization and response time. Cloud is a new architecture, where a huge number of requests are submitted by various customers. Some of these requests need multi-tiers in federated cloud environment to perform effective execution. Since there are a huge number of requests, at times, the requests with the small scale will have to wait for a long time. In order to overcome such situation, a new scheduling algorithm is proposed based on the priorities to schedule the requests in a vertically scaled virtualized machine. This algorithm works based on the properties of requests such as depth of tier and memory size. The experimental results show that the performance of the proposed algorithm is better than the existing (FCFS) algorithm