Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | 30th Euromicro Conference on Real-Time Systems, ECRTS 2018 |
| Herausgeber/-innen | Sebastian Altmeyer |
| Herausgeber (Verlag) | Schloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing |
| ISBN (elektronisch) | 9783959770750 |
| Publikationsstatus | Veröffentlicht - 22 Juni 2018 |
| Veranstaltung | 30th Euromicro Conference on Real-Time Systems, ECRTS 2018 - Barcelona, Spanien Dauer: 3 Juni 2018 → 6 Juni 2018 |
Publikationsreihe
| Name | Leibniz International Proceedings in Informatics, LIPIcs |
|---|---|
| Band | 106 |
| ISSN (Print) | 1868-8969 |
Abstract
Although internal devices (e.g., memory, timers) and external devices (e.g., transceivers, sensors) significantly contribute to the energy consumption of an embedded real-time system, their impact on the worst-case response energy consumption (WCRE) of tasks is usually not adequately taken into account. Most WCRE analysis techniques, for example, only focus on the processor and therefore do not consider the energy consumption of other hardware units. Apart from that, the typical approach for dealing with devices is to assume that all of them are always activated, which leads to high WCRE overestimations in the general case where a system switches off the devices that are currently not needed in order to minimize energy consumption. In this paper, we present SysWCEC, an approach that addresses these problems by enabling static WCRE analysis for entire real-time systems, including internal as well as external devices. For this purpose, SysWCEC introduces a novel abstraction, the power-state-transition graph, which contains information about the worst-case energy consumption of all possible execution paths. To construct the graph, SysWCEC decomposes the analyzed real-time system into blocks during which the set of active devices in the system does not change and is consequently able to precisely handle devices being dynamically activated or deactivated.
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30th Euromicro Conference on Real-Time Systems, ECRTS 2018. Hrsg. / Sebastian Altmeyer. Schloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing, 2018. 24 (Leibniz International Proceedings in Informatics, LIPIcs; Band 106).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Whole-System Worst-Case Energy-Consumption Analysis for Energy-Constrained Real-Time Systems
AU - Wägemann, Peter
AU - Dietrich, Christian
AU - Distler, Tobias
AU - Ulbrich, Peter
AU - Schröder-Preikschat, Wolfgang
N1 - Funding information: Supplement Material ECRTS Artifact Evaluation approved artifact available at https://dx.doi.org/10.4230/DARTS.4.2.7, Source code of SysWCEC available at https://gitlab.cs.fau.de/syswcec Acknowledgements This work is supported by the German Research Foundation (DFG), in part by Research Unit FOR 1508 under grant no. SCHR 603/14-2 (BATS), Research Grant no. SCHR 603/13-1 (Power-Aware Critical Sections), the CRC/TRR 89 Project C1 (Invasive Computing), and the Bavarian Ministry of State for Economics under grant no. 0704/883 25.
PY - 2018/6/22
Y1 - 2018/6/22
N2 - Although internal devices (e.g., memory, timers) and external devices (e.g., transceivers, sensors) significantly contribute to the energy consumption of an embedded real-time system, their impact on the worst-case response energy consumption (WCRE) of tasks is usually not adequately taken into account. Most WCRE analysis techniques, for example, only focus on the processor and therefore do not consider the energy consumption of other hardware units. Apart from that, the typical approach for dealing with devices is to assume that all of them are always activated, which leads to high WCRE overestimations in the general case where a system switches off the devices that are currently not needed in order to minimize energy consumption. In this paper, we present SysWCEC, an approach that addresses these problems by enabling static WCRE analysis for entire real-time systems, including internal as well as external devices. For this purpose, SysWCEC introduces a novel abstraction, the power-state-transition graph, which contains information about the worst-case energy consumption of all possible execution paths. To construct the graph, SysWCEC decomposes the analyzed real-time system into blocks during which the set of active devices in the system does not change and is consequently able to precisely handle devices being dynamically activated or deactivated.
AB - Although internal devices (e.g., memory, timers) and external devices (e.g., transceivers, sensors) significantly contribute to the energy consumption of an embedded real-time system, their impact on the worst-case response energy consumption (WCRE) of tasks is usually not adequately taken into account. Most WCRE analysis techniques, for example, only focus on the processor and therefore do not consider the energy consumption of other hardware units. Apart from that, the typical approach for dealing with devices is to assume that all of them are always activated, which leads to high WCRE overestimations in the general case where a system switches off the devices that are currently not needed in order to minimize energy consumption. In this paper, we present SysWCEC, an approach that addresses these problems by enabling static WCRE analysis for entire real-time systems, including internal as well as external devices. For this purpose, SysWCEC introduces a novel abstraction, the power-state-transition graph, which contains information about the worst-case energy consumption of all possible execution paths. To construct the graph, SysWCEC decomposes the analyzed real-time system into blocks during which the set of active devices in the system does not change and is consequently able to precisely handle devices being dynamically activated or deactivated.
KW - Energy-constrained real-time systems
KW - Static whole-system analysis
KW - Worst-case energy consumption (WCEC)
KW - Worst-case response energy consumption (WCRE)
UR - http://www.scopus.com/inward/record.url?scp=85049332728&partnerID=8YFLogxK
U2 - 10.4230/LIPIcs.ECRTS.2018.24
DO - 10.4230/LIPIcs.ECRTS.2018.24
M3 - Conference contribution
AN - SCOPUS:85049332728
T3 - Leibniz International Proceedings in Informatics, LIPIcs
BT - 30th Euromicro Conference on Real-Time Systems, ECRTS 2018
A2 - Altmeyer, Sebastian
PB - Schloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing
T2 - 30th Euromicro Conference on Real-Time Systems, ECRTS 2018
Y2 - 3 June 2018 through 6 June 2018
ER -