Predicting timing behavior in architectural design exploration of real-time embedded systems

Authors:
Rajeshkumar S. Sambandam;Xiaobo Hu
Affiliations:
Level One Communications, Inc., Sacramento, CA and Department of Electrical and Computer Engineering, Western Michigan University, Kalamazoo, MI;Department of Computer Science and Engineering, University of Notre Dame, Notre Dame, IN and Hewlett Packard Laboratories, Bristol, England
Venue:
DAC '97 Proceedings of the 34th annual Design Automation Conference
Year:
1997

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Abstract

The degree of flexibility of a real-time system architectureindicates the capability of the system to tolerate perturbationsin timing related specifications. Flexibility is also an importantfactor in the trade-off studies between cost and performance.In this paper, we identify the need for a flexibility metricand show that the existing real-time analysis results cannot bedirectly used as such a metric. We formulate new metrics andillustrate their effectiveness in comparing the flexibility of differentsystem architectures.