An approach to improve predictability in communication services in distributed real-time embedded systems

Authors:
Elias T. Silva;Marco A. Wehrmeister;Flávio R. Wagner;Carlos E. Pereira
Affiliations:
UFRGS, Porto Alegre -- Brazil and CEFET-CE, Fortaleza -- Brazil;UFRGS, Porto Alegre -- Brazil;UFRGS, Porto Alegre -- Brazil;UFRGS, Porto Alegre -- Brazil
Venue:
JTRES '07 Proceedings of the 5th international workshop on Java technologies for real-time and embedded systems
Year:
2007

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Abstract

The development of Distributed Real-Time Embedded Systems requires solutions able to address constraints imposed on design, such as low energy consumption, reduced area, and timing requirements, also keeping a flexible and reusable approach to cope with the growing complexity of these systems. This paper shows how the RTSJ event service can improve a multiprocessor communication service, opening room for time and energy optimization. Furthermore, the unpredictability inherent to communication is reduced, improving real-time properties. An illustrative example of message passing is used to demonstrate the concept.