Interactive task behavior in a time-sharing environment

  • Authors:
  • Murty Parupudi;Joseph Winograd

  • Affiliations:
  • -;-

  • Venue:
  • ACM '72 Proceedings of the ACM annual conference - Volume 2
  • Year:
  • 1972

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Abstract

COntinuous Software MOnitoring System {COSMOS} is a measurement tool developed for observing and analyzing user behavior and operating system performance under the UNIVAC® Series 70 Virtual Memory Operating System {VMOS}, an interrupt-driven, time-shared, demand paging operating system. This paper reports empirical data obtained by using COSMOS to observe a large number of interactions in which a wide class of programs were being executed interactively. Distributions of think time, compute time, page fault behavior, and I/O frequency are presented.