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Performance estimation for real-time distributed embedded systems

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2 Author(s)
Ti-Yen Yen ; Quickturn Design Syst., San Jose, CA, USA ; W. Wolf

Many embedded computing systems are distributed systems: communicating processes executing on several CPUs/ASICs. This paper describes a performance analysis algorithm for a set of tasks executing on a heterogeneous distributed system. Tight bounds are essential to the synthesis and verification of application-specific distributed systems, such as embedded computing systems. Our bounding algorithms are valid for a general problem model: The system can contain several tasks with hard real-time deadlines and different periods; each task is partitioned into a set of processes related by data dependencies. The periods of tasks and the computation times of processes are not necessarily constant and can be specified by a lower bound and an upper bound. Such a model requires a more sophisticated algorithm, but leads to more accurate results than previous work. Our algorithm both provides tighter bounds and is faster than previous methods

Published in:

IEEE Transactions on Parallel and Distributed Systems  (Volume:9 ,  Issue: 11 )