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Issue No.11 - November (2003 vol.14)
pp: 1155-1167
ABSTRACT
<p><b>Abstract</b>—More than 90 percent of all microprocessors are now used for real-time and embedded applications. The behavior of these applications is often constrained by the physical world. It is therefore important to devise higher-level languages and middleware that meet conventional functional requirements, as well as dependably and productively enforce real-time constraints. This paper provides two contributions to the study of languages and middleware for real-time and embedded applications. We first describe the architecture of jRate, which is an open-source ahead-of-time-compiled implementation of the RTSJ middleware. We then show performance results obtained using RTJPerf, which is an open-source benchmarking suite that systematically compares the performance of RTSJ middleware implementations. This paper shows that, while research remains to be done to make RTSJ a bullet-proof technology, the initial results are promising. The performance and predictability of jRate provides a baseline for what can be achieved by using ahead-of-time compilation. Likewise, RTJPerf enables researchers and practitioners to evaluate the pros and cons of RTSJ middleware systematically as implementations mature.</p>
INDEX TERMS
Real-time middleware, real-time Java, QoS-enabled middleware platforms, object-oriented languages, real-time resource management, performance evaluation.
CITATION
Angelo Corsaro, Douglas C. Schmidt, "The Design and Performance of Real-Time Java Middleware", IEEE Transactions on Parallel & Distributed Systems, vol.14, no. 11, pp. 1155-1167, November 2003, doi:10.1109/TPDS.2003.1247675
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