Efficient memory management in video on demand servers

Authors:
A. GarcıA-MartıNez;J. FernáNdez-Conde;Á. ViñA
Affiliations:
Departmento de Tecnologıas de las Communicaciones, Universidad Carlos III, Madrid, Spain;Department of Computer Science, University of Massachusetts, Amherst, MA, USA;Departmento deElectrónica y Sistemas, Universidade da Coruña. A Coruña, Spain
Venue:
Computer Communications
Year:
2000

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Abstract

In this article we present, analyse and evaluate a new memory management technique for video-on-demand servers. Our proposal, Memory Reservation Per Storage Device (MRPSD), relies on the allocation of a fixed, small number of memory buffers per storage device. Selecting adequate scheduling algorithms, information storage strategies and admission control mechanisms, we demonstrate that MRPSD is suited for the deterministic service of variable bit rate streams to intolerant clients. MRPSD allows large memory savings compared to traditional memory management techniques, based on the allocation of a certain amount of memory per client served, without a significant performance penalty.