Scheduling Sporadic and Aperiodic Events in a Hard Real-Time System
• Technical Report
Publisher
Software Engineering Institute
CMU/SEI Report Number
CMU/SEI-89-TR-011Subjects
Abstract
A real-time system consists of both aperiodic and periodic tasks. Periodic tasks have regular arrival times and hard deadlines. Aperiodic tasks have irregular arrival times and either soft or hard deadlines. In this paper, we present a new algorithm, the Sporadic Server algorithm, that greatly improves response times for soft-deadline aperiodic tasks and can guarantee hard deadlines for both periodic and aperiodic tasks. The operation of the Sporadic Server algorithm, its performance, and schedulability analysis are discussed and compared with previous, published aperiodic service algorithms.
Cite This Technical Report
Sprunt, B., Sha, L., & Lehoczky, J. (1989, April 1). Scheduling Sporadic and Aperiodic Events in a Hard Real-Time System. (Technical Report CMU/SEI-89-TR-011). Retrieved April 19, 2024, from https://insights.sei.cmu.edu/library/scheduling-sporadic-and-aperiodic-events-in-a-hard-real-time-system/.
@techreport{sprunt_1989,
author={Sprunt, Brinkley and Sha, Lui and Lehoczky, John},
title={Scheduling Sporadic and Aperiodic Events in a Hard Real-Time System},
month={Apr},
year={1989},
number={CMU/SEI-89-TR-011},
howpublished={Carnegie Mellon University, Software Engineering Institute's Digital Library},
url={https://insights.sei.cmu.edu/library/scheduling-sporadic-and-aperiodic-events-in-a-hard-real-time-system/},
note={Accessed: 2024-Apr-19}
}
Sprunt, Brinkley, Lui Sha, and John Lehoczky. "Scheduling Sporadic and Aperiodic Events in a Hard Real-Time System." (CMU/SEI-89-TR-011). Carnegie Mellon University, Software Engineering Institute's Digital Library. Software Engineering Institute, April 1, 1989. https://insights.sei.cmu.edu/library/scheduling-sporadic-and-aperiodic-events-in-a-hard-real-time-system/.
B. Sprunt, L. Sha, and J. Lehoczky, "Scheduling Sporadic and Aperiodic Events in a Hard Real-Time System," Carnegie Mellon University, Software Engineering Institute's Digital Library. Software Engineering Institute, Technical Report CMU/SEI-89-TR-011, 1-Apr-1989 [Online]. Available: https://insights.sei.cmu.edu/library/scheduling-sporadic-and-aperiodic-events-in-a-hard-real-time-system/. [Accessed: 19-Apr-2024].
Sprunt, Brinkley, Lui Sha, and John Lehoczky. "Scheduling Sporadic and Aperiodic Events in a Hard Real-Time System." (Technical Report CMU/SEI-89-TR-011). Carnegie Mellon University, Software Engineering Institute's Digital Library, Software Engineering Institute, 1 Apr. 1989. https://insights.sei.cmu.edu/library/scheduling-sporadic-and-aperiodic-events-in-a-hard-real-time-system/. Accessed 19 Apr. 2024.
Sprunt, Brinkley; Sha, Lui; & Lehoczky, John. Scheduling Sporadic and Aperiodic Events in a Hard Real-Time System. CMU/SEI-89-TR-011. Software Engineering Institute. 1989. https://insights.sei.cmu.edu/library/scheduling-sporadic-and-aperiodic-events-in-a-hard-real-time-system/