Fuzzy Real Time Scheduling on Distributed Systems to Meet the Deadline of Applications

Mrs Rekha A Kulkarni , Dr. Suhas H Patil, Dr N.Balaji

As there is fast change in the design of computing systems, distributed computing is gaining prominence. Fast processing with large data sets is becoming need of the era.. In distributed systems different kinds of hardware and software work together in cooperative fashion to solve problems involving large amount of data. In a heterogeneous environment handling real time tasks poses challenges of processor scheduling and load balancing to meet the deadlines. Implementation of real-time tasks poses a lot of problems due to the unpredictability of the tasks involved and due to the lack of complete task knowledge prior to the execution process. Fuzzy logic can be used in dynamic scheduling of these tasks based on the load information at various processing units. Fuzzy logic uses the system's deadline miss ratio (DMR) and system throughput to calculate a value which provides a system performance metric used to drive the system to the desired level of performance.