The meaning and role of value in scheduling flexible real-time systems
Journal of Systems Architecture: the EUROMICRO Journal - Special issue on real-time systems
Efficient Scheduling Algorithms for Real-Time Multiprocessor Systems
IEEE Transactions on Parallel and Distributed Systems
A Reliability-Aware Value-Based Scheduler for Dynamic Multiprocessor Real-Time Systems
IPDPS '02 Proceedings of the 16th International Parallel and Distributed Processing Symposium
Value vs. deadline scheduling in overload conditions
RTSS '95 Proceedings of the 16th IEEE Real-Time Systems Symposium
| Hi-index | 0.00 |
In dynamic real-time systems, value-based scheduling aims to achieve graceful degradation during overloads, in addition to maintaining a high schedulability during normal and underloads. The objective of this paper is twofold: (1) to propose an adaptive value-based scheduler for multiprocessor real-time systems aimed at maintaining a high system value with less deadline misses, and (2) to present the implementation of the proposed scheduler in a Linux based real-time operating system, RT-Linux, which in its current form does not employ a notion of task value. We evaluate the performance of the proposed scheduler in terms of two performance metrics, namely, "value ratio" and "success ratio" through both simulation and implementation.