A resource synchronization protocol for dynamic scheduling real-time CORBA
- Resource Type
- Conference
- Authors
- Chen Zhang; Cordes, D.
- Source
- Proceedings IEEE SoutheastCon 2002 (Cat. No.02CH37283) SoutheastCon 2002 SoutheastCon, 2002. Proceedings IEEE. :15-20 2002
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Geoscience
Photonics and Electrooptics
Power, Energy and Industry Applications
Dynamic scheduling
Real time systems
Scheduling algorithm
Access protocols
Runtime
Middleware
System recovery
Timing
Heuristic algorithms
Distributed computing
- Language
In 1989, the Object Management Group (OMG) formed a Real-Time Special Interest Group (RT SIG) with the goal of extending the Common Object Request Broker Architecture (CORBA) standard with real-time specifications. The most recent effort attempts to meet the requirements of dynamic distributed real-time systems. In such systems, one of the requirements is resource access synchronization for tasks with end-to-end timing constraints under dynamic scheduling. The paper proposes a resource synchronization protocol that meets the requirements of the dynamic distributed realtime system specified by the Dynamic Scheduling Real-Time CORBA (DSRT CORBA). The proposed protocol can be applied to both Earliest Deadline First (EDF) and Least Laxity First (LLF) dynamic scheduling algorithms, allows distributed nested critical sections, and avoids unnecessary runtime overhead.