Title :
A Stochastic Model for Closed-Loop Preemptive Microprocessor I/O Organizations
Author :
Van Campenhout, Jan M. ; Notredame, Paul
Author_Institution :
Information Systems Laboratory, Department of Electrical Engineering, Stanford University
Abstract :
A stochastic model of closed-loop priority I/O systems is developed in which request generation is assumed to be exponential but service time distributions are arbitrary. This model reflects the code granularity caused by the implementation. Using this model, an interrupt-driven system is compared to a similar system with polled I/O on the basis of latency times and CPU utilization.
Keywords :
Microprocessor systems; performance analysis; priority systems; stochastic modeling; Application software; Communication system control; Control systems; Delay; Microcomputers; Microprocessors; Performance analysis; Real time systems; Stochastic processes; Stochastic systems; Microprocessor systems; performance analysis; priority systems; stochastic modeling;
Journal_Title :
Computers, IEEE Transactions on
DOI :
10.1109/TC.1978.1675015
