An evaluation of design trade-offs in a high-performance, media-on-demand server

Divyesh Jadav*, Alok Choudhary, P. Bruce Berra

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


We present a high-performance solution to the I/O retrieval problem in a distributed multimedia system. Parallelism of data retrieval is achieved by striping the data across multiple disks. We identify the components that contribute to media data-retrieval delay. The variable delays among these have a great bearing on the server throughput under varying load conditions. We present a buffering scheme to minimize these variations. We have implemented our model on the Intel Paragon parallel computer. The results of componentwise instrumentation of the server operation are presented and analyzed. Experimental results that demonstrate the efficacy of the buffering scheme are presented. Based on our experiments, a dynamic admission-control policy that takes server workloads into account is proposed.

Original languageEnglish (US)
Pages (from-to)53-68
Number of pages16
JournalMultimedia Systems
Issue number1
StatePublished - 1997


  • Buffering
  • Media-on-demand server
  • Parallel input-output
  • Real-time scheduling
  • Striping

ASJC Scopus subject areas

  • Software
  • Information Systems
  • Media Technology
  • Hardware and Architecture
  • Computer Networks and Communications

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