https://scholars.lib.ntu.edu.tw/handle/123456789/349858
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Chu, E.T.-H. | en_US |
dc.contributor.author | Huang, T.-Y. | en_US |
dc.contributor.author | Tsai, C.-H. | en_US |
dc.contributor.author | Chen, J.-J. | en_US |
dc.contributor.author | Kuo, T.-W. | en_US |
dc.contributor.author | TEI-WEI KUO | zz |
dc.creator | Chu, E.T.-H.;Huang, T.-Y.;Tsai, C.-H.;Chen, J.-J.;Kuo, T.-W. | - |
dc.date.accessioned | 2018-09-10T07:35:28Z | - |
dc.date.available | 2018-09-10T07:35:28Z | - |
dc.date.issued | 2009 | - |
dc.identifier.uri | http://www.scopus.com/inward/record.url?eid=2-s2.0-70349576958&partnerID=MN8TOARS | - |
dc.identifier.uri | http://scholars.lib.ntu.edu.tw/handle/123456789/349858 | - |
dc.description.abstract | The I/O subsystem has become a major source of energy consumption in a hard real-time monitoring and control system. To reduce its energy consumption without missing deadlines, a dynamic power management (DPM) policy must carefully consider the power parameters of a device, such as its break-even time and wake-up latency, when switching off idle devices. This problem becomes extremely complicated when dynamic voltage scaling (DVS) is applied to change the execution time of a task. In this paper, we present COLORS, a composite low-power scheduling framework that includes DVS in a DPM policy to maximize the energy reduction on the I/O subsystem. COLORS dynamically predicts the earliest-access time of a device and switches off idle devices. It makes use of both static and dynamic slack time to extend the execution time of a task by DVS, in order to create additional switch-off opportunities. Task workloads, processor profiles, and device characteristics all impact the performance of a low-power real-time algorithm. We also identify a key metric that primarily determines its performance. The experimental results show that, compared with previous work, COLORS achieves additional energy reduction up to 20%, due to the efficient utilization of slack time. © 2009 Springer Science+Business Media, LLC. | - |
dc.language | en | en |
dc.relation.ispartof | Real-Time Systems | en_US |
dc.source | AH-Scopus to ORCID | - |
dc.subject | Dynamic power management; Dynamic voltage scaling; Real-time embedded systems | - |
dc.subject.classification | [SDGs]SDG7 | - |
dc.subject.other | Access time; Device characteristics; Dynamic power management; Dynamic voltage scaling; Energy consumption; Energy reduction; Execution time; Hard real-time; I/O Device; I/O subsystems; Low Power; Power parameters; Real time algorithms; Real-time embedded systems; Scheduling frameworks; Slack time; Source of energy; Static and dynamic; Task workloads; Wake-up latency; Color; Electric load forecasting; Electric power measurement; Embedded systems; Energy policy; Phase measurement; Switches; Time switches; Voltage stabilizing circuits; Real time systems | - |
dc.title | A DVS-assisted hard real-time I/O device scheduling algorithm | - |
dc.type | journal article | en |
dc.identifier.doi | 10.1007/s11241-009-9068-7 | - |
dc.relation.pages | 222-255 | - |
dc.relation.journalvolume | 41 | - |
dc.relation.journalissue | 3 | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.openairetype | journal article | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
item.fulltext | no fulltext | - |
crisitem.author.dept | Networking and Multimedia | - |
crisitem.author.dept | Computer Science and Information Engineering | - |
crisitem.author.dept | Electronics Engineering | - |
crisitem.author.dept | MediaTek-NTU Research Center | - |
crisitem.author.orcid | 0000-0003-1974-0394 | - |
crisitem.author.parentorg | College of Electrical Engineering and Computer Science | - |
crisitem.author.parentorg | College of Electrical Engineering and Computer Science | - |
crisitem.author.parentorg | College of Electrical Engineering and Computer Science | - |
crisitem.author.parentorg | Others: University-Level Research Centers | - |
顯示於: | 資訊工程學系 |
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