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引用次数: 1
摘要
在分析现有Java实时规范(Real Time Specification for Java, RTSJ)的局限性和Java开发模型的基础上，设计了一种可预测的Java实时开发框架，可用于开发嵌入式高可靠性实时系统。该配置文件采用三层开发架构，包括创建层、执行层和回收层。创建层创建并启动各种线程和对象组。执行层执行已经启动的线程。回收层恢复不再使用的内存。应用实践表明，该配置文件所采用的创建不同线程组、定时垃圾回收等机制不仅保证了系统的可预测性，而且降低了系统对内存的使用需求。
Based on the analysis of limitations of existing Real Time Specification for Java (RTSJ) and Java developing model, we have designed a predictable real time Java developing profile which can be used to develop embedded high-reliability real-time systems. The profile adopts a three-layer developing architecture, including Creation Layer, Execution Layer and Recycle Layer. The Creation Layer creates and starts various groups of threads and objects. The Execution Layer executes threads that have been started. The Recycle Layer recovers the memory that is no longer in use. The application practice shows that the mechanisms, such as creating various groups of threads, periodic garbage collection, etc, not only guarantee the predictability of system developed with this profile, but also reduce memory usage of system requirement.
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