Real-time scheduling support in Futurebus

Lui Sha, Ragunathan Rajkumar, John Lehoczky

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


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. The authors review the design considerations to support real-time systems in the IEEE Futurebus+ backplane specification and describe how this backplane can be used to satisfy timing constraints in priority-driven real-time systems.

Original languageEnglish (US)
Title of host publication90 Real-Time Syst. Symp.
PublisherPubl by IEEE
Number of pages10
ISBN (Print)0818621125
StatePublished - Oct 1991
Externally publishedYes
EventProceedings of the 11th Real-Time Systems Symposium - Lake Buena Vista, FL, USA
Duration: Dec 5 1990Dec 7 1990

Publication series

NameProceedings - Real-Time Systems Symposium


OtherProceedings of the 11th Real-Time Systems Symposium
CityLake Buena Vista, FL, USA

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications


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