Volume 7 Number 8 (Aug. 2012)
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JSW 2012 Vol.7(8): 1835-1844 ISSN: 1796-217X
doi: 10.4304/jsw.7.8.1835-1844

Design and Performance of a Minimal Real-Time Operating System in a Safe Language: Experience with Java on the Sun SPOT

Qinghua Lu1, 2, Phillip John McKerrowsup>3, and Zhi Quan Zhousup>3,
1Software Systems Research Group, NICTA, Sydney, Australia
2School of Computer Science and Engineering, University of New South Wales, Sydney, Australia
3School of Computer Science and Software Engineering, University of Wollongong, Wollongong, Australia

Abstract—Real-time operating systems (RTOSes) are required to run for years without human intervention, and never fail. Safety is a concern when they control physical equipment. One area of real-time operating system (RTOS) research is looking at the question: can developing an RTOS in a safe language result in a system that an errant process cannot crash? In this paper, we examine the advantages and problems of writing an RTOS in a safe language, namely Java. Then we design, implement and measure the performance of a minimal RTOS to schedule processes as threads on a Sun SPOT micro-controller.

Index Terms—real-time operating system, Java, Sun SPOT, embedded system, safe language, green thread, performance measurement, TINI, kernel overhead

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Cite: Qinghua Lu, Phillip John McKerrow, and Zhi Quan Zhou, "Design and Performance of a Minimal Real-Time Operating System in a Safe Language: Experience with Java on the Sun SPOT," Journal of Software vol. 7, no. 8, pp. 1835-1844, 2012.

General Information

ISSN: 1796-217X (Online)
Frequency:  Bimonthly (Since 2020)
Editor-in-Chief: Prof. Antanas Verikas
Executive Editor: Ms. Yoyo Y. Zhou
Abstracting/ Indexing: DBLP, EBSCO, Google Scholar, ProQuest, INSPEC(IET), ULRICH's Periodicals Directory, WorldCat, etc
E-mail: jsw@iap.org
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