Open Access

Assessing Task Migration Impact on Embedded Soft Real-Time Streaming Multimedia Applications

  • Andrea Acquaviva1,
  • Andrea Alimonda2Email author,
  • Salvatore Carta2 and
  • Michele Pittau2
EURASIP Journal on Embedded Systems20072008:518904

DOI: 10.1155/2008/518904

Received: 4 April 2007

Accepted: 19 October 2007

Published: 22 November 2007

Abstract

Multiprocessor systems on chips (MPSoCs) are envisioned as the future of embedded platforms such as game-engines, smart-phones and palmtop computers. One of the main challenge preventing the widespread diffusion of these systems is the efficient mapping of multitask multimedia applications on processing elements. Dynamic solutions based on task migration has been recently explored to perform run-time reallocation of task to maximize performance and optimize energy consumption. Even if task migration can provide high flexibility, its overhead must be carefully evaluated when applied to soft real-time applications. In fact, these applications impose deadlines that may be missed during the migration process. In this paper we first present a middleware infrastructure supporting dynamic task allocation for NUMA architectures. Then we perform an extensive characterization of its impact on multimedia soft real-time applications using a software FM Radio benchmark.

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Authors’ Affiliations

(1)
Institute of Information Science and Technology, Electronics and Systems Design Group, University of Verona
(2)
Department of Mathematics and Computer Science, University of Cagliari

Copyright

© Andrea Acquaviva et al. 2008

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.