RTZen: Highly predictable, real-time Java middleware for distributed and embedded systems

K Raman, Y Zhang, M Panahi, JA Colmenares… - Middleware 2005: ACM …, 2005 - Springer
K Raman, Y Zhang, M Panahi, JA Colmenares, R Klefstad, T Harmon
Middleware 2005: ACM/IFIP/USENIX 6th International Middleware Conference …, 2005Springer
Distributed real-time and embedded (DRE) applications possess stringent quality of service
(QoS) requirements, such as predictability, latency, and throughput constraints. Real-Time
CORBA, an open middleware standard, allows DRE applications to allocate, schedule, and
control resources to ensure predictable end-to-end QoS. The Real-Time Specification for
Java (RTSJ) has been developed to provide extensions to Java so that it can be used for
real-time systems, in order to bring Java's advantages, such as portability and ease of use …
Abstract
Distributed real-time and embedded (DRE) applications possess stringent quality of service (QoS) requirements, such as predictability, latency, and throughput constraints. Real-Time CORBA, an open middleware standard, allows DRE applications to allocate, schedule, and control resources to ensure predictable end-to-end QoS. The Real-Time Specification for Java (RTSJ) has been developed to provide extensions to Java so that it can be used for real-time systems, in order to bring Java’s advantages, such as portability and ease of use, to real-time applications.
In this paper, we describe RTZen, an implementation of a Real-Time CORBA Object Request Broker (ORB), designed to comply with the restrictions imposed by RTSJ. RTZen is designed to eliminate the unpredictability caused by garbage collection and improper support for thread scheduling through the use of appropriate data structures, threading models, and memory scopes. RTZen’s architecture is also designed to hide the complexities of RTSJ related to distributed programming from the application developer. Empirical results show that RTZen is highly predictable and has acceptable performance. RTZen therefore demonstrates that Real-Time CORBA middleware implemented in real-time Java can meet stringent QoS requirements of DRE applications, while supporting safer, easier, cheaper, and faster development in real-time Java.
Springer
Showing the best result for this search. See all results