Key Concepts of the INCAS Multicomputer Project
IEEE Transactions on Software Engineering
Port manipulator for the distributed realization of an integrated manufacturing system
Computer Systems Science and Engineering
Global events and global breakpoints in distributed systems
Proceedings of the Twenty-First Annual Hawaii International Conference on Software Track
A Hybrid Monitor for Behavior and Performance Analysis of Distributed Systems
IEEE Transactions on Software Engineering
The flight recorder: an architectural aid for system monitoring
PADD '91 Proceedings of the 1991 ACM/ONR workshop on Parallel and distributed debugging
IEEE Transactions on Software Engineering
Building Large, Complex, Distributed Safety-Critical OperatingSystems
Real-Time Systems - Special issue on safety-critical systems
Resource Management Middleware for Dynamic, DependableReal-Time Systems
Real-Time Systems - Special issue on challenges in design and implementation of middlewares for real time systems
Enhancing O-O Middleware to Become Time-Aware
Real-Time Systems - Special issue on challenges in design and implementation of middlewares for real time systems
Real-Time Performance Estimation for Dynamic, Distributed Real-Time Systems
ICCS '02 Proceedings of the International Conference on Computational Science-Part III
Integrating Time-Aware CORBA Objects into O-O Real-Time Computations
WORDS '97 Proceedings of the 3rd Workshop on Object-Oriented Real-Time Dependable Systems - (WORDS '97)
Adaptive resource management for dynamic distributed real-time applications
The Journal of Supercomputing
3-Hierarchical resource management model on web grid service architecture
The Journal of Supercomputing
Hierarchical and dynamic information management framework on grid computing
EUC'06 Proceedings of the 2006 international conference on Embedded and Ubiquitous Computing
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A real-time monitor is employed to aid in scheduling tasks with random execution times in a real-time computing system. The real-time monitor is composed of dedicated hardware called test and measurement processors (TMPs). It is used to measure accurately and with minimal interference the true execution time, which consists of pure execution time and resource sharing delay. The monitor is a permanent and transparent part of a real-time system. It degrades system performance by less than 0.1% and does not interfere with the host system's execution. The measured pure execution time and resource sharing delay for each task have been used to develop a mechanism that reduces the discrepancy between the worst-case execution time (WET) and the estimated execution time. This result is used to decide at the earliest possible time whether or not a task can meet its deadline. A set of example tasks are experimentally measured in a simulated environment while their characteristics are varied. The measured data are analyzed, demonstrating the utility and power of the proposed real-time monitor.