A SIMULATOR DESIGN FOR STUDYING OPERATING-SYSTEMS - RELATED ISSUES

Using simulators to study the behavior and performance of operating sy stems is gaining popularity. In this paper, a new simulator design is presented that can be used to quickly assemble a basic prototype that captures most of the functionality of modern multi-tasking operating s ystems. The design technique is modular and allows the designer to cho ose the correct level of detail to suit his/her model. It takes into c onsideration detailed timing information of individual system tasks, a nd thereby provides results with a high level of accuracy. A new model ing approach is introduced that improves input jobs descriptions. It i s also shown how the scope of the basic simulator can be easily extend ed for studying more complex systems, such as distributed computing en vironments.