Optimal Software Rejuvenation Schedule Algorithm under Statistical Minimum Cost
Jiwen Wang · Journal of Guangxi Normal University · 2008
The execution of software rejuvenation to counteract the software aging phenomenon can involve an overhead.This paper develops a statistical algorithm to estimate the optimal software rejuvenation schedules,provided that the statistical complete sample data of failure times is given,and the optimal software rejuvenation schedules which minimize the expected rejuvenation cost in per unit time are derived under statistical TTT transitions.Numerical results illustrate the resulting estimators for the optimal software rejuvenation schedules have quite nice convergence properties and are useful in applying to a real software in operation without specifying the underlying failure time distributions.