NDLI: A priori overload handling in ERfair scheduled embedded systems: Hybrid automata approach

Content Provider	IEEE Xplore Digital Library
Author	Chauhan, Kamaljeet Piyoosh P. Sarkar, Arnab Biswas, Santosh
Copyright Year	2014
Description	Author affiliation: Department of CSE, IIT Guwahati, India (Chauhan, Kamaljeet; Piyoosh P; Sarkar, Arnab; Biswas, Santosh)
Abstract	Handling overloads in dynamic real-time embedded systems which are subject to frequent workload changes is a critical issue as it allows graceful quality of service (QoS) degradation and provides a mechanism to determine the load to be shed to handle the overload. This paper presents a novel hybrid automata based ERfair scheduling framework for a real-time system which may be subjected to transient overloads. Each task has an assigned criticality value and consists of two parts, a mandatory part and an optional part. The probability distribution of task arrivals is assumed to be known in advance. The framework employs a formal automata based a priori analysis mechanism for detecting and avoiding possible overload within a stipulated time in future. The proposed formal model is verifiable, thereby making it suitable to model a complex system. The verifiable model ensures that all possible cases of overloads are detected and chances of false positives are minimized, thereby maximizing resource utilization.
Starting Page	1
Ending Page	6
File Size	595945
Page Count	6
File Format	PDF
e-ISBN	9781479953646
DOI	10.1109/INDICON.2014.7030489
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-12-11
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Processor scheduling Computational modeling Automata Real-time systems Scheduling Transient analysis Load modeling
Content Type	Text
Resource Type	Article

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