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Communication Dans Un Congrès Année : 2013

Evaluation of the Performance/Energy Overhead in DSP Video Decoding and its Implications

Yahia Benmoussa
Jalil Boukhobza
Eric Senn

Résumé

Video decoding is considered as one of the most compute and energy intensive application in energy constrained mobile devices. Some specific processing units, such as DSPs, are added to those devices in order to optimize the performance and the energy consumption. However, in DSP video decoding, the inter-processor communication overhead may have a considerable impact on the performance and the energy consumption. In this paper, we propose to evaluate this overhead and analyse its impact on the performance and the energy consumption as compared to the GPP decoding. Our work revealed that the GPP can be the best choice in many cases due to the a significant overhead in DSP decoding which may represents 30% of the total decoding energy.
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Dates et versions

hal-00846463 , version 1 (19-07-2013)
hal-00846463 , version 2 (24-07-2013)
hal-00846463 , version 3 (21-08-2013)
hal-00846463 , version 4 (09-09-2013)

Identifiants

  • HAL Id : hal-00846463 , version 1

Citer

Yahia Benmoussa, Jalil Boukhobza, Eric Senn, Djamel Benazzouz. Evaluation of the Performance/Energy Overhead in DSP Video Decoding and its Implications. Annual Metting of the GDR SoC SiP, Jun 2013, Lyon, France. ⟨hal-00846463v1⟩
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