On Interrupt Strategy from the Point of View of System Efficiency

Interrupt strategy of an operating system can help computer to tackle with urgent orimportant events,and to run programs in a reasonable fashion in order to achieve a satisfactoryperformance.But a sophisticated strategy will cause an amount of system costs.In this paperwe introduce the concept of “layered interrupt priorities”which will care both the system costsand the response capability.This strategy can be applied in timesharing systems,realtimesystems,or multiprocessor systems.At the end of the paper we exploit the advantages of thisstrategy using data acquired by simulation of a real computer system.