IEICE TRANSACTIONS on Fundamentals
Virtualizing DVFS for Energy Minimization of Embedded Dual-OS Platform
Summary :
Recent embedded systems require both traditional machinery control and information processing, such as network and GUI handling. A dual-OS platform consolidates a real-time OS (RTOS) and general-purpose OS (GPOS) to realize efficient software development on one physical processor. Although the dual-OS platform attracts increasing attention, it often suffers from energy inefficiency in the GPOS for guaranteeing real-time responses of the RTOS. This paper proposes an energy minimization method called DVFS virtualization, which allows running multiple DVFS policies dedicated to the RTOS and GPOS, respectively. The experimental evaluation using a commercial microcontroller showed that the proposed hardware could change the supply voltage within 500 ns and reduce the energy consumption of typical applications by 60 % in the best case compared to conventional dual-OS platforms. Furthermore, evaluation using a commercial microprocessor achieved a 15 % energy reduction of practical open-source software at best.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E107-A No.1 pp.3-15
- Publication Date
- 2024/01/01
- Publicized
- 2023/07/12
- Online ISSN
- 1745-1337
- DOI
- 10.1587/transfun.2023KEP0002
- Type of Manuscript
- Special Section PAPER (Special Section on Circuits and Systems)
- Category
Authors
Takumi KOMORI
Nagoya University
Yutaka MASUDA
Nagoya University
Tohru ISHIHARA
Nagoya University
Keyword
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Takumi KOMORI, Yutaka MASUDA, Tohru ISHIHARA, "Virtualizing DVFS for Energy Minimization of Embedded Dual-OS Platform" in IEICE TRANSACTIONS on Fundamentals,
vol. E107-A, no. 1, pp. 3-15, January 2024, doi: 10.1587/transfun.2023KEP0002.
Abstract: Recent embedded systems require both traditional machinery control and information processing, such as network and GUI handling. A dual-OS platform consolidates a real-time OS (RTOS) and general-purpose OS (GPOS) to realize efficient software development on one physical processor. Although the dual-OS platform attracts increasing attention, it often suffers from energy inefficiency in the GPOS for guaranteeing real-time responses of the RTOS. This paper proposes an energy minimization method called DVFS virtualization, which allows running multiple DVFS policies dedicated to the RTOS and GPOS, respectively. The experimental evaluation using a commercial microcontroller showed that the proposed hardware could change the supply voltage within 500 ns and reduce the energy consumption of typical applications by 60 % in the best case compared to conventional dual-OS platforms. Furthermore, evaluation using a commercial microprocessor achieved a 15 % energy reduction of practical open-source software at best.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.2023KEP0002/_p
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@ARTICLE{e107-a_1_3,
author={Takumi KOMORI, Yutaka MASUDA, Tohru ISHIHARA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Virtualizing DVFS for Energy Minimization of Embedded Dual-OS Platform},
year={2024},
volume={E107-A},
number={1},
pages={3-15},
abstract={Recent embedded systems require both traditional machinery control and information processing, such as network and GUI handling. A dual-OS platform consolidates a real-time OS (RTOS) and general-purpose OS (GPOS) to realize efficient software development on one physical processor. Although the dual-OS platform attracts increasing attention, it often suffers from energy inefficiency in the GPOS for guaranteeing real-time responses of the RTOS. This paper proposes an energy minimization method called DVFS virtualization, which allows running multiple DVFS policies dedicated to the RTOS and GPOS, respectively. The experimental evaluation using a commercial microcontroller showed that the proposed hardware could change the supply voltage within 500 ns and reduce the energy consumption of typical applications by 60 % in the best case compared to conventional dual-OS platforms. Furthermore, evaluation using a commercial microprocessor achieved a 15 % energy reduction of practical open-source software at best.},
keywords={},
doi={10.1587/transfun.2023KEP0002},
ISSN={1745-1337},
month={January},}
Copy
TY - JOUR
TI - Virtualizing DVFS for Energy Minimization of Embedded Dual-OS Platform
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 3
EP - 15
AU - Takumi KOMORI
AU - Yutaka MASUDA
AU - Tohru ISHIHARA
PY - 2024
DO - 10.1587/transfun.2023KEP0002
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E107-A
IS - 1
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - January 2024
AB - Recent embedded systems require both traditional machinery control and information processing, such as network and GUI handling. A dual-OS platform consolidates a real-time OS (RTOS) and general-purpose OS (GPOS) to realize efficient software development on one physical processor. Although the dual-OS platform attracts increasing attention, it often suffers from energy inefficiency in the GPOS for guaranteeing real-time responses of the RTOS. This paper proposes an energy minimization method called DVFS virtualization, which allows running multiple DVFS policies dedicated to the RTOS and GPOS, respectively. The experimental evaluation using a commercial microcontroller showed that the proposed hardware could change the supply voltage within 500 ns and reduce the energy consumption of typical applications by 60 % in the best case compared to conventional dual-OS platforms. Furthermore, evaluation using a commercial microprocessor achieved a 15 % energy reduction of practical open-source software at best.
ER -
English
