A Multithread NFS Client Architecture for the Multimedia Cluster Generation

T. Olivares, T. Cortes, L. Orozco-Barbosa, F.J. Quiles, and A. Garrido (Spain)


Clusters, I/O, NFS, prefetching, multimedia applications, MPEG2, performance.


The development and wide deployment of digital video based applications have spurred the need of high performance parallel video processing systems. Clusters of workstations are seen as a technical feasible and economical viable solution on the development of high performance video processing systems. Based on the results of our previous research efforts, we introduce in this paper a novel predictive multithread NFS client. Throughout an in-depth analysis of our previous I/O performance results, we tune up the main parameters of the proposed mechanism for maximum performance. Our experimental results show that by properly tuning up the I/O system and by taking into account the application profile, a significant reduction on the time required in the processing of video can be achieved.

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