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View all- Burns ADavis R(2017)A Survey of Research into Mixed Criticality SystemsACM Computing Surveys10.1145/313134750:6(1-37)Online publication date: 22-Nov-2017
The schedulability region of two-level mixed-criticality systems based on EDF-VD
Article No.: 256, Pages 1 - 6
Abstract
The algorithm Earliest Deadline First with Virtual Deadlines (EDF-VD) was recently proposed to schedule mixed-criticality task sets consisting of high-criticality (HI) and low-criticality (LO) tasks. EDF-VD distinguishes between HI and LO mode. In HI mode, the HI tasks may require executing for longer than in LO mode. As a result, in LO mode, EDF-VD assigns virtual deadlines to HI tasks (i.e., it uniformly downscales deadlines of HI tasks) to account for an increase of workload in HI mode. Different schedulability conditions have been proposed in the literature; however, the schedulability region to fully characterize EDF-VD has not been investigated so far. In this paper, we review EDF-VD's schedulability criteria and determine its schedulability region to better understand and design mixed-criticality systems. Based on this result, we show that EDF-VD has a schedulability region being around 85% larger than that of the Worst-Case Reservations (WCR) approach.
References
[1]
C. L. Liu and J. W. Layland, "Scheduling algorithms for multiprogramming in a hard-real-time environment," J. ACM, vol. 20, no. 1, pp. 46--61, Jan. 1973.
[2]
R. Wilhelm, J. Engblom, A. Ermedahl, N. Holsti, S. Thesing, D. Whalley, G. Bernat, C. Ferdinand, R. Heckmann, T. Mitra, F. Müller, I. Puaut, P. Puschner, J. Staschulat, and P. Stenström, "The worst-case execution-time problem - overview of methods and survey of tools," ACM Trans. Emb. Comp. Sys., vol. 7, pp. 36:1--36:53, May 2008.
[3]
M. Lv, W. Yi, N. Guan, and G. Yu, "Combining abstract interpretation with model checking for timing analysis of multicore software," in RTSS, IEEE 31st, 2010, pp. 339--349.
[4]
S. Vestal, "Preemptive scheduling of multi-criticality systems with varying degrees of execution time assurance," in RTSS, 28th IEEE, 2007, pp. 239--243.
[5]
S. K. Baruah, V. Bonifaci, G. D'Angelo, A. Marchetti-Spaccamela, S. Van Der Ster, and L. Stougie, "Mixed-criticality scheduling of sporadic task systems," in 19th Eur. conf. on Alg., ser. ESA'11. Springer, 2011, pp. 555--566.
[6]
S. Baruah, V. Bonifaci, G. D'Angelo, H. Li, A. Marchetti-Spaccamela, S. van der Ster, and L. Stougie, "The preemptive uniprocessor scheduling of mixed-criticality implicit-deadline sporadic task systems," in ECRTS, 24th, 2012, pp. 145--154.
[7]
E. Bini and G. C. Buttazzo, "Schedulability analysis of periodic fixed priority systems," IEEE Trans. Comput., vol. 53, no. 11, pp. 1462--1473, Nov. 2004.
[8]
D. Müller and M. Werner, "Quantifying the Advantage of EDF vs. RMS Schedulability on a Uniprocessor Using a Differential Analysis and a Power-law Total Utilization Distribution," in ISORC, 16th, Jun. 2013.
[9]
S. Baruah, A. Burns, and R. Davis, "Response-time analysis for mixed criticality systems," in RTSS, 2011, pp. 34--43.
[10]
S. Baruah, B. Chattopadhyay, H. Li, and I. Shin, "Mixed-criticality scheduling on multiprocessors," Real-Time Systems, pp. 1--36, 2013.
[11]
R. Pathan, "Schedulability analysis of mixed-criticality systems on multiprocessors," in ECRTS, 2012, pp. 309--320.
[12]
P. Ekberg and W. Yi, "Bounding and shaping the demand of mixed-criticality sporadic tasks," in ECRTS, 2012, pp. 135--144.
[13]
H. Su and D. Zhu, "An elastic mixed-criticality task model and its scheduling algorithm," in DATE. EDA Consortium, 2013, pp. 147--152.
[14]
T.-W. Kuo and A. K. Mok, "Load adjustment in adaptive real-time systems," in RTSS, Dec. 1991, pp. 160--170.
[15]
G. Buttazzo, G. Lipari, and L. Abeni, "Elastic task model for adaptive rate control," in RTSS, 19th, 1998, pp. 286--295.
[16]
Q. Zhao, Z. Gu, and H. Zeng, "PT-AMC: Integrating Preemption Thresholds into Mixed-Criticality Scheduling," in DATE, 2013, pp. 141--146.
[17]
Y. Wang and M. Saksena, "Scheduling fixed-priority tasks with preemption threshold," in RTCSA, 1999, pp. 328--335.
[18]
A. Bastoni, B. B. Brandenburg, and J. H. Anderson, "Cache-related preemption and migration delays: Empirical approximation and impact on schedulability," in 6th Int'l Workshop on OS Platforms for Emb. RT Appl., Jul. 2010, pp. 33--44.
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- The schedulability region of two-level mixed-criticality systems based on EDF-VD
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- The Russian Academy of Sciences: The Russian Academy of Sciences
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Published: 24 March 2014
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View all- Burns ADavis R(2017)A Survey of Research into Mixed Criticality SystemsACM Computing Surveys10.1145/313134750:6(1-37)Online publication date: 22-Nov-2017
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