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On Real-Time Performance of Ahead-of-Time Compiled Java [PDF]

Eighth IEEE International Symposium on Object-Oriented Real-Time Distributed Computing (ISORC'05), 2005
One of the main challenges in getting acceptance for safe object-oriented languages in hard real-time systems is to combine automatic memory management with hard real-time constraints, while providing adequate general execution performance. An approach to real-time Java based on ahead-of-time compilation is presented, and real-time properties and ...
Anders Nilsson, Sven Gestegard Robertz
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Real-time programming with Java technologies

Fourth IEEE International Symposium on Object-Oriented Real-Time Distributed Computing. ISORC 2001, 2002
The Java programming language brings different benefits to different audiences. The article examines common perspectives on what Java offers, or ought to offer to the domain of real time programming. It is concluded that real time programming with Java technologies is a reality today. Emerging technologies will increase the breadth of options available
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Ravenscar‐Java: a high‐integrity profile for real‐time Java

Concurrency and Computation: Practice and Experience, 2002
AbstractFor many, Java is the antithesis of a high‐integrity programming language. Its combination of object‐oriented programming features, its automatic garbage collection, and its poor support for real‐time multi‐threading are all seen as particular impediments.
Jagun Kwon, Steve King, Andy Wellings
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A locality model for the real-time specification for Java

Proceedings of the 8th International Workshop on Java Technologies for Real-Time and Embedded Systems, 2010
The memory architecture of non-uniform memory access (NUMA) systems cause applications to experience variable delays when accessing the main memory. The Real-Time Specification for Java assumes that all memory is uniformly accessed and provides limited support to control the allocation policies of threads and objects.
Andy Wellings, Yang Chang, Abdul Haseeb Malik   +2 more
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Real-time garbage collection for a multithreaded Java microcontroller

Fourth IEEE International Symposium on Object-Oriented Real-Time Distributed Computing. ISORC 2001, 2002
We envision the upcoming of microcontrollers and systems-on-chip that are based on multithreaded processor kernels due to the fast context switching ability of hardware multithreading. Moreover we envision an extensive market for Java-based applications in embedded real-time systems.
Fuhrmann, S., Pfeffer, Matthias, Brinkschulte, Uwe, Kreuzinger, Jochen, Ungerer, Theo   +4 more
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Integrating Java 8 Streams with The Real-Time Specification for Java

Proceedings of the 13th International Workshop on Java Technologies for Real-time and Embedded Systems, 2015
The paper investigates the use of the Java 8 stream processing facilities within the context of the Real-Time Specification for Java. Java 8 stream processing uses the Java 7 Fork/Join framework. We demonstrate that it is not possible, with the current framework, to supply a pool of real-time worker threads with which to perform stream evaluation.
Andy Wellings, Hai Tao Mei, Ian Gray
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Real-Time Stream Processing in Java

2016
This paper presents a streaming data framework for the Real-Time Specification for Java, with the goal of levering as much as possible the Java 8 Stream processing framework whilst delivering bounded latency. Our approach is to buffer the incoming streaming data into micro batches which are then converted to collections for processing by the Java 8 ...
Ian Gray, HaiTao Mei, Andy Wellings
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Enhancing real-time CORBA via real-time Java features

24th International Conference on Distributed Computing Systems, 2004. Proceedings., 2004
End-to-end middleware predictability is essential to support quality of service (QoS) capabilities needed by distributed real-time and embedded (DRE) applications. Real-time CORBA is a middleware standard that allows DRE applications to allocate, schedule, and control the QoS of CPU, memory, and networking resources.
R. Klefstad, Arvind S. Krishna, Douglas C. Schmidt   +2 more
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Multiprocessors and the Real-Time Specification for Java

2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC), 2008
Currently, the Real-Time Specification for Java (RTSJ) is silent on multiprocessor issues It attempts not to preclude multiprocessor implementations but provides no direct support. This paper discusses the issues that need to be addressed if the RTSJ is to be better defined for execution on a multiprocessor system.
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Implementing the Real-Time Processes of RTPA using Real-Time Java

2006 Canadian Conference on Electrical and Computer Engineering, 2006
This paper discusses the implementation of the real-time processes of Real-Time Process Algebra (RTPA) using Real-Time Java. The difficulty in implementing real-time software from formal specifications comes from the fact that some real-time features expressed using a formal specification language cannot be easily transformed into a programming ...
Xinming Tan, Yingxu Wang, C.F. Ngolah
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