Hybrid simulation-queueing module for modeling UNIX I/O in performance analysis

B. L. Nelson*, W. S. Keezer, T. F. Schuppe

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


LEXIS-NEXIS frequently develops simulation models to estimate the computer system capacity required to deliver on-line information services. The load imposed by Unix Input/Output (I/O) processes is a key factor in many of these models. However, the I/O processes themselves are seldom of interest, and explicitly modeling them results in simulations executing much slower than real time. This paper presents a hybrid simulation-queueing module that can be inserted into any simulation to accurately model I/O resource consumption and queueing delays without explicitly modeling each individual I/O process. This module is in use at LEXIS-NEXIS today (LEXIS and NEXIS are registered trademarks of Reed-Elsevier Properties, Inc., and are used under license).

Original languageEnglish (US)
Pages (from-to)1238-1246
Number of pages9
JournalWinter Simulation Conference Proceedings
StatePublished - Dec 1 1996
EventProceedings of the 1996 Winter Simulation Conference, WSC'96 - Coronado, CA, USA
Duration: Dec 8 1996Dec 11 1996

ASJC Scopus subject areas

  • Software
  • Modeling and Simulation
  • Safety, Risk, Reliability and Quality
  • Chemical Health and Safety
  • Applied Mathematics


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