Workload Balance based Dynamic Resource Allocation Model in the Cloud Data Center

In the cloud computing environment, the data center is very important, which provides on-demand information technology resources to end-user. The major function of cloud data center is a balanced allocation of resources for application requests. Clearly, the end-user will pay more attention to response time of request and service rate of cloud resource, while the cloud resource provider may focus on costs and energy consumption. The workload balance is a key factor. In the paper, we will firstly study the relationship between the workload balance and these parameters, and then an algorithm is proposed based on the workload balance for guaranteeing the end-user's Quality of Service and the provider's costs. A simulation experiment will show that our algorithm can allocate resources more reasonably in terms of application requests in the cloud data center.