Gain Time Reclaiming in High Performance Real-Time Java Systems
E. Yu-Shing Hu, A. Wellings and G. Bernat
The run-time characteristics of Java, such as high frequency of method invocation, dynamic dispatching and dynamic loading, make Java more difficult than other object-oriented programming languages, such as C++, for conducting Worst-Case Execution Time (WCET) analysis. To offer a more flexible way to develop object-oriented real-time applications in the real-time Java environment without loss of predicability and performance, we propose a novel gain time reclaiming framework integrated with WCET analysis. This paper demonstrates how to improve the utilisation and performance of the whole system by reclaiming gain time at run-time. Our approach shows that integrating WCET with gain time reclaiming can not only provide a more flexible environment, but it also does not necessarily result in unsafe or unpredictable timing behaviour.
BibTex Entry
@article{Hu2003,
author = {E. Yu-Shing Hu and A. Wellings and G. Bernat},
journal = {Proceedings of the 6th IEEE International Symposium on Object-Oriented Real-Time Distributed Computing ISORC-2003},
pages = {249--256},
title = {Gain Time Reclaiming in High Performance Real-Time Java Systems},
year = {2003}
}