This paper presents a new energy-aware algorithm that integrates Dynamic Voltage and Frequency Scaling (DVFS) and Dynamic Power Management (DPM) techniques to further reduce energy consumption in embedded systems. It consists of an off-line DVFS-stage, for computing the speed that minimizes energy consumption during active intervals while guaranteeing timing constraints, and an online DPM-stage, for prolonging sleep intervals by postponing task execution. Moreover, limited preemptive scheduling is exploited to reduce preemption costs and further extend sleep intervals under fixed-priority systems, with respect to fully preemptive schedulers. The online algorithm has a constant complexity and preemption costs are taken into account in the analysis. A set of simulation experiments are reported to illustrate the behavior of the proposed approach as a function of different parameters and compare its performance with the state-of-art methods available in the literature.
An energy-aware algorithm exploiting limited preemptive scheduling under fixed priorities / Bambagini, Mario; Bertogna, Marko; Marinoni, Mauro; Buttazzo, Giorgio. - STAMPA. - (2013), pp. 3-12. ((Intervento presentato al convegno 8th IEEE International Symposium on Industrial Embedded Systems, SIES 2013 tenutosi a Porto, Portugal nel June, 2013 [10.1109/SIES.2013.6601465].
Data di pubblicazione: | 2013 | |
Titolo: | An energy-aware algorithm exploiting limited preemptive scheduling under fixed priorities | |
Autore/i: | Bambagini, Mario; Bertogna, Marko; Marinoni, Mauro; Buttazzo, Giorgio | |
Autore/i UNIMORE: | ||
Digital Object Identifier (DOI): | http://dx.doi.org/10.1109/SIES.2013.6601465 | |
Codice identificativo Scopus: | 2-s2.0-84885413843 | |
Codice identificativo ISI: | WOS:000334680000001 | |
Nome del convegno: | 8th IEEE International Symposium on Industrial Embedded Systems, SIES 2013 | |
Luogo del convegno: | Porto, Portugal | |
Data del convegno: | June, 2013 | |
Pagina iniziale: | 3 | |
Pagina finale: | 12 | |
Citazione: | An energy-aware algorithm exploiting limited preemptive scheduling under fixed priorities / Bambagini, Mario; Bertogna, Marko; Marinoni, Mauro; Buttazzo, Giorgio. - STAMPA. - (2013), pp. 3-12. ((Intervento presentato al convegno 8th IEEE International Symposium on Industrial Embedded Systems, SIES 2013 tenutosi a Porto, Portugal nel June, 2013 [10.1109/SIES.2013.6601465]. | |
Tipologia | Relazione in Atti di Convegno |
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