Performance evaluation of workload-based software rejuvenation scheme

The software rejuvenation is one of the most effective preventive maintenan ce technique for operational software systems with high assurance requireme nt. In this paper, we propose the workload-based software rejuvenation sche me for a server type of software system, and develop stochastic models to d etermine the optimal software rejuvenation schedules for some dependability measures. In numerical examples, we evaluate quantitatively the performanc e of workload-based software rejuvenation scheme and compare it with the ti me-based rejuvenation scheme.