Abstract: Aiming at the degrading system performance that bursty workloads bring in cloud computing,BWA(Bursty Workloads Allocation)model was proposed to resolve resource deployment problems．Firstly,BWA’s workload monitor model is responsible of monitoring the variation of tasks in cloud computing,judging the on-off in real time about bursty workloads．Next,BWA tries to avoid the appearance of partial hot dots by using new deployment strategy to speed up the system response．At last,the forecasting algorithm is used to improve response speed by deploying the computing nodes in advance．The results of simulation in CloudSim prove that using BWA model can obtain better system perfor-mance．

Key words: Cloud computing,Resource allocation,Bursty workloads,Monitor workloads,Forecast workloads