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

被引：25

作者：

Acquaviva, Andrea ^{[1
]}

Alimonda, Andrea ^{[2
]}

Carta, Salvatore ^{[2
]}

Pittau, Michele ^{[2
]}

机构：

[1] Univ Verona, Inst Informat Sci & Technol, Elect & Syst Design Grp, I-37100 Verona, Italy

[2] Univ Cagliari, Dept Math & Comp Sci, I-09100 Cagliari, Italy

来源：

EURASIP JOURNAL ON EMBEDDED SYSTEMS | 2008年 / 01期

关键词：

D O I：

10.1155/2008/518904

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Multiprocessor systems on chips (MPSoCs) are envisioned as the future of embedded platforms such as game-engines, smartphones 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. (C) 2008 Andrea Acquaviva et al.

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