Paper Info
Title
Fixed-Priority Global Scheduling For Mixed-Criticality Real-Time Systems
Abstract
There has been a growing interest in recent years in mixed-criticality real-time systems in which tasks are attributed different levels of criticality based on the degree to which their deadlines must be assured. While most of the initial efforts on mixed-criticality systems targeted single-processor systems, the research community has recently started to investigate multiprocessor mixed-criticality real-time systems. In this paper we investigate how global, fixed-priority algorithms can be applied in the context of multiprocessor mixed-criticality systems. We identify the two key dimensions of the problem - priority assignment and schedulability testing, and consider candidate algorithms for each dimension. We also propose a new and simple priority assignment policy called CPRatio that considers both task criticality and timing constraints to improve the schedulability of mixed-criticality task sets. We experimentally evaluate the performance of priority assignment strategies and schedulability tests in the global multiprocessor mixed-criticality scheduling context.
Year
DOI
Venue
2014
10.1504/IJES.2014.063825
INTERNATIONAL JOURNAL OF EMBEDDED SYSTEMS
Keywords
DocType
Volume
mixed-criticality, real-time scheduling, global scheduling, fixed-priority scheduling, multiprocessor scheduling, schedulability tests
Journal
6
Issue
ISSN
Citations 
2-3
1741-1068
2
PageRank 
References 
Authors
0.39
20
2
Name
Order
Citations
PageRank
Owen R. Kelly120.39
Hakan Aydin2121861.97