A New Rejuvenation Approach of Software Aging

In order to effectively use the resources of software systems, increase the availability and reliability of system, this paper discusses the rational allocation of resources, and studies the software rejuvenation time. For the reasons that the resources are exhausted to result in attenuation of system performance and decline of processing capacity, the existing literature only had analyzed the memory resource, but they all did not discuss the allocation circs of CPU and memory that are the main resources to affect the performance of system, however, this paper will study these problems. The simulation gives the optimal rejuvenation time intervals and change tendency of application server under different allocation of resources and CPU resource thresholds, as well as analyses the boundary conditions of optimal rejuvenation time.