DyPS: Dynamic Processor Switching for Energy-Aware Video Decoding on Multi-core SoCs

Yahia Benmoussa 1 Jalil Boukhobza 1 Eric Senn 2 Djamel Benazzouz 3 Yassine Hadjadj-Aoul 4
1 Lab-STICC_UBO_CACS_MOCS
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance, UBO - Université de Brest
2 Lab-STICC_UBS_CACS_MOCS
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
4 DIONYSOS - Dependability Interoperability and perfOrmance aNalYsiS Of networkS
Inria Rennes – Bretagne Atlantique , IRISA-D2 - RÉSEAUX, TÉLÉCOMMUNICATION ET SERVICES
Abstract : In addition to General Purpose Processors (GPP), Multicore SoCs equipping modern mobile devices contain specialized Digital Signal Processor designed with the aim to provide better performance and low energy consumption properties. However, the experimental measurements we have achieved revealed that system overhead, in case of DSP video decoding, causes drastic performances drop and energy efficiency as compared to the GPP decoding. This paper describes DyPS, a new approach for energy-aware processor switching (GPP or DSP) according to the video quality . We show the pertinence of our solution in the context of adaptive video decoding and describe an implementation on an embedded Linux operating system with the help of the GStreamer framework. A simple case study showed that DyPS achieves 30% energy saving while sustaining the decoding performance
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https://hal.univ-brest.fr/hal-00860044
Contributor : Jalil Boukhobza <>
Submitted on : Monday, September 9, 2013 - 11:19:44 PM
Last modification on : Monday, February 25, 2019 - 3:14:11 PM
Long-term archiving on : Thursday, April 6, 2017 - 4:58:04 PM

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  • HAL Id : hal-00860044, version 1
  • ARXIV : 1309.2387

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Yahia Benmoussa, Jalil Boukhobza, Eric Senn, Djamel Benazzouz, Yassine Hadjadj-Aoul. DyPS: Dynamic Processor Switching for Energy-Aware Video Decoding on Multi-core SoCs. EWiLi, the Embedded Operating Systems Workshop, Aug 2013, Toulouse, France. pp.8. ⟨hal-00860044⟩

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