Getting More Flexible Scheduling in the RTSJ

Authors:
Alexandros Zerzelidis;A. J. Wellings
Affiliations:
University of York, UK;University of York, UK
Venue:
ISORC '06 Proceedings of the Ninth IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing
Year:
2006

Citing 0
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Model-based verification of a framework for flexible scheduling in the real-time specification for Java

JTRES '06 Proceedings of the 4th international workshop on Java technologies for real-time and embedded systems
A framework for flexible scheduling in the RTSJ

ACM Transactions on Embedded Computing Systems (TECS)

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Abstract

This paper illustrates how the Real-Time Specification for Java (RTSJ) can be modified to allow applications to implement more flexible scheduling. The proposed approach is a two-level scheduling mechanism where the first level is the RTSJ priority scheduler and the second level is under application control. Minimum, backward-compatible changes to the RTSJ specification are discussed to motivate the required interface. The only assumptions made about the underlying real-time operating system is that it supports pre-emptive priority-based dispatching and that changes to priorities have immediate effect.