Title :
Impact of Task Migration on Streaming Multimedia for Embedded Multiprocessors: A Quantitative Evaluation
Author :
Pittau, Michele ; Alimonda, Andrea ; Carta, Salvatore ; Acquaviva, Andrea
Author_Institution :
Univ. of Cagliari, Cagliari
Abstract :
Dynamic task mapping solutions based on task migration has been recently explored to perform run-time reallocation of task to maximize performance and optimize energy consumption in MPSoCs. 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 realtime applications using a software FM Radio benchmark.
Keywords :
electronic engineering computing; embedded systems; media streaming; memory architecture; microprocessor chips; middleware; multimedia systems; system-on-chip; MPSoC; NUMA architecture; dynamic task mapping solution; embedded multiprocessors; energy consumption optimization; middleware infrastructure; multimedia streaming; performance maximization; run-time reallocation; soft real-time application; software FM Radio benchmark; task migration; Application software; Computer architecture; Memory management; Middleware; Multimedia systems; Operating systems; Runtime; Software performance; Streaming media; Temperature;
Conference_Titel :
Embedded Systems for Real-Time Multimedia, 2007. ESTIMedia 2007. IEEE/ACM/IFIP Workshop on
Conference_Location :
Salzburg
Print_ISBN :
978-1-4244-1654-7
DOI :
10.1109/ESTMED.2007.4375803
