IEICE TRANSACTIONS on Fundamentals
Incorporating Zero-Laxity Policy into Mixed-Criticality Multiprocessor Real-Time Systems
Summary :
As real-time embedded systems are required to accommodate various tasks with different levels of criticality, scheduling algorithms for MC (Mixed-Criticality) systems have been widely studied in the real-time systems community. Most studies have focused on MC uniprocessor systems whereas there have been only a few studies to support MC multiprocessor systems. In particular, although the ZL (Zero-Laxity) policy has been known to an effective technique in improving the schedulability performance of base scheduling algorithms on SC (Single-Criticality) multiprocessor systems, the effectiveness of the ZL policy on MC multiprocessor systems has not been revealed to date. In this paper, we focus on realizing the potential of the ZL policy for MC multiprocessor systems, which is the first attempt. To this end, we design the ZL policy for MC multiprocessor systems, and apply the policy to EDF (Earliest Deadline First), yielding EDZL (Earliest Deadline first until Zero-Laxity) tailored for MC multiprocessor systems. Then, we develop a schedulability analysis for EDZL (as well as its base algorithm EDF) to support its timing guarantee. Our simulation results show a significant schedulability improvement of EDZL over EDF, demonstrating the effectiveness of the ZL policy for MC multiprocessor systems.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E101-A No.11 pp.1888-1899
- Publication Date
- 2018/11/01
- Publicized
- Online ISSN
- 1745-1337
- DOI
- 10.1587/transfun.E101.A.1888
- Type of Manuscript
- PAPER
- Category
- Systems and Control
Authors
Namyong JUNG
Sungkyunkwan University (SKKU)
Hyeongboo BAEK
Sungkyunkwan University (SKKU)
Donghyouk LIM
RTST
Jinkyu LEE
Sungkyunkwan University (SKKU)
Keyword
Latest Issue
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Namyong JUNG, Hyeongboo BAEK, Donghyouk LIM, Jinkyu LEE, "Incorporating Zero-Laxity Policy into Mixed-Criticality Multiprocessor Real-Time Systems" in IEICE TRANSACTIONS on Fundamentals,
vol. E101-A, no. 11, pp. 1888-1899, November 2018, doi: 10.1587/transfun.E101.A.1888.
Abstract: As real-time embedded systems are required to accommodate various tasks with different levels of criticality, scheduling algorithms for MC (Mixed-Criticality) systems have been widely studied in the real-time systems community. Most studies have focused on MC uniprocessor systems whereas there have been only a few studies to support MC multiprocessor systems. In particular, although the ZL (Zero-Laxity) policy has been known to an effective technique in improving the schedulability performance of base scheduling algorithms on SC (Single-Criticality) multiprocessor systems, the effectiveness of the ZL policy on MC multiprocessor systems has not been revealed to date. In this paper, we focus on realizing the potential of the ZL policy for MC multiprocessor systems, which is the first attempt. To this end, we design the ZL policy for MC multiprocessor systems, and apply the policy to EDF (Earliest Deadline First), yielding EDZL (Earliest Deadline first until Zero-Laxity) tailored for MC multiprocessor systems. Then, we develop a schedulability analysis for EDZL (as well as its base algorithm EDF) to support its timing guarantee. Our simulation results show a significant schedulability improvement of EDZL over EDF, demonstrating the effectiveness of the ZL policy for MC multiprocessor systems.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E101.A.1888/_p
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@ARTICLE{e101-a_11_1888,
author={Namyong JUNG, Hyeongboo BAEK, Donghyouk LIM, Jinkyu LEE, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Incorporating Zero-Laxity Policy into Mixed-Criticality Multiprocessor Real-Time Systems},
year={2018},
volume={E101-A},
number={11},
pages={1888-1899},
abstract={As real-time embedded systems are required to accommodate various tasks with different levels of criticality, scheduling algorithms for MC (Mixed-Criticality) systems have been widely studied in the real-time systems community. Most studies have focused on MC uniprocessor systems whereas there have been only a few studies to support MC multiprocessor systems. In particular, although the ZL (Zero-Laxity) policy has been known to an effective technique in improving the schedulability performance of base scheduling algorithms on SC (Single-Criticality) multiprocessor systems, the effectiveness of the ZL policy on MC multiprocessor systems has not been revealed to date. In this paper, we focus on realizing the potential of the ZL policy for MC multiprocessor systems, which is the first attempt. To this end, we design the ZL policy for MC multiprocessor systems, and apply the policy to EDF (Earliest Deadline First), yielding EDZL (Earliest Deadline first until Zero-Laxity) tailored for MC multiprocessor systems. Then, we develop a schedulability analysis for EDZL (as well as its base algorithm EDF) to support its timing guarantee. Our simulation results show a significant schedulability improvement of EDZL over EDF, demonstrating the effectiveness of the ZL policy for MC multiprocessor systems.},
keywords={},
doi={10.1587/transfun.E101.A.1888},
ISSN={1745-1337},
month={November},}
Copy
TY - JOUR
TI - Incorporating Zero-Laxity Policy into Mixed-Criticality Multiprocessor Real-Time Systems
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1888
EP - 1899
AU - Namyong JUNG
AU - Hyeongboo BAEK
AU - Donghyouk LIM
AU - Jinkyu LEE
PY - 2018
DO - 10.1587/transfun.E101.A.1888
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E101-A
IS - 11
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - November 2018
AB - As real-time embedded systems are required to accommodate various tasks with different levels of criticality, scheduling algorithms for MC (Mixed-Criticality) systems have been widely studied in the real-time systems community. Most studies have focused on MC uniprocessor systems whereas there have been only a few studies to support MC multiprocessor systems. In particular, although the ZL (Zero-Laxity) policy has been known to an effective technique in improving the schedulability performance of base scheduling algorithms on SC (Single-Criticality) multiprocessor systems, the effectiveness of the ZL policy on MC multiprocessor systems has not been revealed to date. In this paper, we focus on realizing the potential of the ZL policy for MC multiprocessor systems, which is the first attempt. To this end, we design the ZL policy for MC multiprocessor systems, and apply the policy to EDF (Earliest Deadline First), yielding EDZL (Earliest Deadline first until Zero-Laxity) tailored for MC multiprocessor systems. Then, we develop a schedulability analysis for EDZL (as well as its base algorithm EDF) to support its timing guarantee. Our simulation results show a significant schedulability improvement of EDZL over EDF, demonstrating the effectiveness of the ZL policy for MC multiprocessor systems.
ER -
English
