A simulation model of GECOS III

  • Authors:
  • Kenneth E. Norland;William C. Bulgren

  • Affiliations:
  • -;-

  • Venue:
  • ACM '71 Proceedings of the 1971 26th annual conference
  • Year:
  • 1971

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Abstract

A simulation model for a multiprogramming operating system has been devised and programmed in Simscript. Essential elements of the environment have been included such as job arrival rate, maximum number of jobs, the operating system overhead and peripheral and core allocation. Some allowances are made for time-sharing, as well as remote and normal batch jobs. The model is patterned basically after GECOS III, on the H-600 line computer. The hardware constraints considered when necessary are those of the H-635. Some results of the investigation are presented, such as lengths of various queues and also resource utilization on a typical installation.