Real-time scheduling support in Futurebus+

Lui Sha, Ragunathan Rajkumar, John Lehoczky

Research output: Chapter in Book/Report/Conference proceedingConference contribution


As real-time applications become more demanding, multiprocessors are being called upon to meet their increasingly stringent requirements. A simple but efficient architecture for building multiprocessors is to connect several processors to a common backplane bus. The backplane acts as a shared resource in this architecture and contention for its use by different bus modules must be resolved. In a real-time system, this backplane must also provide scheduling support such that the timing behavior of the resulting system is analyzable. In addition, the support primitives for real-time scheduling on a backplane bus must also be constrained by the economic considerations associated with a bus standard that is intended to support both time sharing and real-time applications. In this paper, we review the design considerations to support realtime systems in the IEEE Futurebus+ backplane specification and describe how this backplane can be used to satisfy timing constraints in priority-driven realtime systems.

Original languageEnglish (US)
Title of host publication1990 Proceedings 11th Real-Time Systems Symposium, RTSS 1990
Number of pages10
StatePublished - 1990
Externally publishedYes
Event1990 11th Real-Time Systems Symposium, RTSS 1990 - Lake Buena Vista, FL, United States
Duration: Dec 5 1990Dec 7 1990

Publication series

NameProceedings - Real-Time Systems Symposium
ISSN (Print)1052-8725


Other1990 11th Real-Time Systems Symposium, RTSS 1990
Country/TerritoryUnited States
CityLake Buena Vista, FL

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications


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