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A Software Framework for Energy and Performance Tradeoff in Fixed-Priority Hard Real-Time Embedded Systems [chapter]

Gang Zeng, Hiroyuki Tomiyama, Hiroaki Takada
Embedded and Ubiquitous Computing  
A dynamic energy performance scaling (DEPS) framework is proposed to save energy in fixed-priority hard real-time embedded systems.  ...  In this generalized framework, two existing technologies, i.e., dynamic hardware resource configuration (DHRC) and dynamic voltage frequency scaling (DVFS) can be combined for energy performance tradeoff  ...  This work is supported by the Core Research for Evolutional Science and Technology (CREST) from Japan Science and Technology Agency.  ... 
doi:10.1007/978-3-540-77092-3_2 dblp:conf/euc/ZengTT07 fatcat:sms62h7rkfblxkqttdn7qmc6r4

A Generalized Framework for Energy Savings in Hard Real-Time Embedded Systems

Gang Zeng, Hiroyuki Tomiyama, Hiroaki Takada
2009 IPSJ Transactions on System LSI Design Methodology  
A dynamic energy performance scaling (DEPS) framework is proposed for energy savings in hard real-time embedded systems.  ...  In this generalized framework, two existing technologies, i.e., dynamic hardware resource configuration (DHRC) and dynamic voltage frequency scaling (DVFS) are combined for energy performance tradeoff.  ...  This work is supported in part by the fund of Core Research for Evolutional Science and Technology, Japan Science and Technology Agency.  ... 
doi:10.2197/ipsjtsldm.2.167 fatcat:dbzrfwdoivdtrirpcsfptutuki

A Generalized Framework for System-Wide Energy Savings in Hard Real-Time Embedded Systems

Gang Zeng, Hiroyuki Tomiyama, Hiroaki Takada, Tohru Ishihara
2008 2008 IEEE/IFIP International Conference on Embedded and Ubiquitous Computing  
A generalized dynamic energy performance scaling (DEPS) framework is proposed for exploring applicationspecific energy-saving potential in hard real-time embedded systems.  ...  This software-centric framework focuses on system-wide energy reduction and takes advantage of possible power control mechanisms to trade off performance for energy savings.  ...  Acknowledgments This work is supported in part by the CREST ULP project of JST.  ... 
doi:10.1109/euc.2008.101 dblp:conf/euc/ZengTTI08 fatcat:ek772raz5ra6ji2gamwm5s7jji

RTDT: A static QoS manager, RT scheduling, HW/SW partitioning CAD tool

H. Tmar, J.-Ph. Diguet, A. Azzedine, M. Abid, J.-L. Philippe
2006 Microelectronics Journal  
The Hardware (HW)/Software (SW) partitioning/scheduling relies on two subtasks : the cost function and the real time (RT) analysis.  ...  The cost function takes into account the System on a Chip (SoC) area and the static and dynamic power dissipation.  ...  For these reasons, embedded real time operating systems (RTOS) use fixed scheduling policies that consist in a priori time slot reservation for each task.  ... 
doi:10.1016/j.mejo.2006.07.028 fatcat:d7raavlfi5b53mhrmwujf3inkq

Efficient power co-estimation techniques for system-on-chip design

Marcello Lajolo, Anand Raghunathan, Sujit Dey
2000 Proceedings of the conference on Design, automation and test in Europe - DATE '00  
Recently, a cycle-accurate energy estimation framework for an embedded processor based system was proposed in [13] , which demonstrated that high accuracies can be obtained through the integration of performance  ...  for control-intensive and reactive embedded systems.  ...  The user is allowed to specify the mapping of each process to hardware or embedded software, set Real-Time Operating System (RTOS) parameters such as scheduling policy and priorities, map the communication  ... 
doi:10.1145/343647.343691 fatcat:awtvgl3ojzgtfk2l5twpecdwwi

Energy-aware wireless systems with adaptive power-fidelity tradeoffs

V. Raghunathan, C.L. Pereira, M.B. Srivastava, R.K. Gupta
2005 IEEE Transactions on Very Large Scale Integration (vlsi) Systems  
Energy awareness in these systems is the ability to perform tradeoffs between available battery energy and application quality requirements.  ...  Wireless networked embedded systems, such as multimedia terminals, sensor nodes, etc., present a rich domain for making energy/performance/quality tradeoffs based on application needs, network conditions  ...  Related work Energy awareness in wireless embedded systems builds upon advances in DPM, DVS, and real-time scheduling techniques. We briefly discuss related work in these areas.  ... 
doi:10.1109/tvlsi.2004.840773 fatcat:c2palcxw4vgx3nszo5ajtyripe

A framework for estimation and minimizing energy dissipation of embedded HW/SW systems

Yanbing Li, Jörg Henkel
1998 Proceedings of the 35th annual conference on Design automation conference - DAC '98  
Energy efficiency is a hot topic in embedded system design.  ...  We present the first comprehensive framework that simultaneously evaluates the tradeoffs of energy dissipations of software and hardware such as caches and main memory.  ...  As could be observed, the behavior of a system in terms of energy and performance is hard to predict and therefore needs powerful tools for analyzing and optimizing.  ... 
doi:10.1145/277044.277097 dblp:conf/dac/LiH98 fatcat:yvkx7ld35jggjopeo54hsljwgy

On the monitoring of system-level energy consumption of battery-powered embedded systems

Arliones Hoeller, Antonio Augusto Frohlich
2011 2011 IEEE International Conference on Systems, Man, and Cybernetics  
This paper addresses an approach for accurately measuring energy consumption on battery-powered embedded systems which can be adequately tuned in order to enhance a set of timing and energy consumption  ...  We considered a simple scheduler which will reserve battery charge to run hard real-time tasks during a pre-defined lifetime and will prevent best-effort tasks from running whenever accounted battery state-of-charge  ...  Optimization Methods in Energy-Aware Real-Time Systems Energy optimization for real-time systems has long been a subject of great interest in the real-time community [14] .  ... 
doi:10.1109/icsmc.2011.6084069 dblp:conf/smc/HoellerF11 fatcat:dkcanfhibrczjkektptnsgyxpu

Control-Scheduling Codesign: A Perspective on Integrating Control and Computing [article]

Feng Xia, Youxian Sun
2008 arXiv   pre-print
control and real-time computing.  ...  Relevant research efforts in the literature are discussed under two categories, i.e., control of computing systems and codesign for control systems.  ...  A Feedback-DVS framework for hard real-time systems is proposed by Zhu and Mueller [26] .  ... 
arXiv:0806.1385v1 fatcat:sowqqc5ccfgirae5z3ct575x4i

A design framework for real-time embedded systems with code size and energy constraints

Sheayun Lee, Insik Shin, Woonseok Kim, Insup Lee, Sang Lyul Min
2008 ACM Transactions on Embedded Computing Systems  
Real-time embedded systems are typically constrained in terms of three system performance criteria: space, time, and energy.  ...  Motivated by this observation, we propose a design framework that can flexibly balance the tradeoff involving the system's code size, execution time, and energy S. Lee et al. consumption.  ...  ACKNOWLEDGMENTS We thank the reviewers for the insightful and constructive comments and suggestions that are essential to improve this paper.  ... 
doi:10.1145/1331331.1331342 fatcat:2btxh6gukjc2xpaafsinyisoaq

Portable Multicore Resource Management for Applications with Performance Constraints

Connor Imes, David H. K. Kim, Martina Maggio, Henry Hoffmann
2016 2016 IEEE 10th International Symposium on Embedded Multicore/Many-core Systems-on-Chip (MCSOC)  
The POET library and runtime system provides a portable method for resource management that achieves near-optimal energy consumption while meeting soft real-time constraints across a range of devices.  ...  Although POET was originally designed and tested on embedded and mobile platforms, in this paper we evaluate it on a manycore server-class system.  ...  Recent work has shown how to augment soft real-time systems with an additional layer to achieve hard real-time constraints [10] .  ... 
doi:10.1109/mcsoc.2016.10 dblp:conf/mcsoc/ImesKMH16 fatcat:uwayxzg54zattf2tcdxbv7radu

Power-Efficient Scheduling for Heterogeneous Distributed Real-Time Embedded Systems

Jiong Luo, Niraj K. Jha
2007 IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems  
It can be included in the inner loop of a system-level synthesis tool for design space exploration of real-time heterogeneous embedded systems, since it is very fast.  ...  ., tasks with precedence relationships) in heterogeneous distributed real-time embedded systems.  ...  Dynamic-voltage-scaling techniques for soft real-time systems need to tradeoff power savings for average response times of tasks.  ... 
doi:10.1109/tcad.2006.885736 fatcat:tsgimimjfjedloprqhiyswr2oa

The Discipline of Embedded Systems Design

Thomas A. Henzinger, Joseph Sifakis
2007 Computer  
It is time to build a new scientific foundation with embedded systems design as the cornerstone, which will ensure a systematic and even-handed integration of the two fields.  ...  At the other, embedded systems design goes beyond the traditional expertise of electrical engineers because computation and software are integral parts of embedded systems.  ...  Such a tight component coupling is the standard model for most synthesizable hardware and for synchronous real-time software.  ... 
doi:10.1109/mc.2007.364 fatcat:qvwikwqfovbchkjk5o6ltaq5re

Application-directed voltage scaling

J. Pouwelse, K. Langendoen, H.J. Sips
2003 IEEE Transactions on Very Large Scale Integration (vlsi) Systems  
Low-priority tasks are scheduled first, since they can be easily preempted to accommodate for high-priority tasks later.  ...  This paper describes our energy priority scheduling (EPS) algorithm supporting power-aware applications. EPS orders tasks according to how tight their deadlines are and how often tasks overlap.  ...  Bakker and E.Mouw for providing them with an excellent low-power platform and assisting with the measurements and interpretation.  ... 
doi:10.1109/tvlsi.2003.814324 fatcat:2s3tmlznwrcf3euyu4mmherzem

Supporting Deliberative Real-Time AI Systems: A Fixed Priority Scheduling Approach

Yanching Chu, Alan Burns
2007 Real-Time Systems (ECRTS), Proceedings of the Euromicro Workshop on  
Constructing deliberative real-time AI systems is challenging due to the high execution-time variance in AI algorithms and the requirement of worst-case bounds for hard real-time guarantees, often resulting  ...  The works presented in this thesis provide new advances in fixed priority response time analysis for imprecise computation which, together with present results in the literature, should provide a more  ...  to be embedded in larger real-time systems [53] .  ... 
doi:10.1109/ecrts.2007.32 dblp:conf/ecrts/ChuB07 fatcat:ayfinirilbdxrhdjv5qc4wjyhu
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