Design and evaluation of data access strategies in a high performance multimedia-on-demand server

Divyesh Jadav*, Chutimet Srinilta, Alok Choudhary, P. Bruce Berra

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Abstract

One of the key components of a multi-user multimedia-on-demand system is the data server. Digitalization of traditionally analog data such as video and audio, and the feasibility of obtaining network bandwidths above the gigabit-per-second range are two important advances that have made possible the realization, in the near future, of interactive distributed multimedia systems. Secondary-to-main memory I/O technology has not kept pace with advances in networking, main memory and CPU processing power. Consequently, the performance of the server has a direct bearing on the overall performance of such a system. In this paper, we develop a model for the architecture of a server for such a system. Parallelism of data retrieval is achieved by striping the data across multiple disks. The performance of any server ultimately depends on the data access patterns. Two modifications of the basic retrieval algorithm are presented to exploit data access patterns in order to improve system throughput and response time. A complementary information caching optimization is discussed. Finally, we present performance results of these algorithms on the IBM SP1 and Intel Paragon parallel computers.

Original languageEnglish (US)
Title of host publicationInternational Conference on Multimedia Computing and Systems -Proceedings
PublisherIEEE
Pages286-291
Number of pages6
StatePublished - Jan 1 1995
EventProceedings of the International Conference on Multimedia Computing and Systems - Washington, DC, USA
Duration: May 15 1995May 18 1995

Other

OtherProceedings of the International Conference on Multimedia Computing and Systems
CityWashington, DC, USA
Period5/15/955/18/95

ASJC Scopus subject areas

  • Computer Science(all)
  • Engineering(all)

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