Title
Precise scheduling of mixed-criticality tasks by varying processor speed
Abstract
In this paper, we extend the imprecise mixed-criticality (IMC) model to precise scheduling of tasks. We also integrate the IMC model with the dynamic voltage and frequency scaling (DVFS) technique to enable energy minimization. The challenge in precise scheduling of MC systems is to guarantee the timing correctness all tasks under both pessimistic and optimistic assumptions simultaneously. To our knowledge, this is the first work to address the integration of DVFS energy-conserving techniques with precise scheduling of all tasks of the MC model. We present utilization based schedulability tests and sufficient conditions for such systems under two well-known MC frameworks, EDF-VD and MCF. A quantitative study in the forms of speedup bound and approximation ratio are derived for the unified model. Empirical studies based on randomly generated sets are conducted to verify the theoretical results as well as the effectiveness of the proposed algorithms.
Year
DOI
Venue
2019
10.1145/3356401.3356410
Proceedings of the 27th International Conference on Real-Time Networks and Systems
Keywords
Field
DocType
approximation ratio, mixed-criticality, precise scheduling, speedup bound, varying-speed platform
Scheduling (computing),Computer science,Parallel computing,Mixed criticality,Clock rate,Distributed computing
Conference
ISBN
Citations 
PageRank 
978-1-4503-7223-7
1
0.35
References 
Authors
0
4
Name
Order
Citations
PageRank
Ashikahmed Bhuiyan1202.99
Sai Sruti221.03
Zhishan Guo332934.04
Kecheng Yang452.74