A Performance Comparison of the IBM RS/6000 and the Astronautics ZS-1

  • Authors:
  • William Mangione-Smith;Santosh G. Abraham;Edward S. Davidson

  • Affiliations:
  • Univ. of Michigan, Ann Arbor;Univ. of Michigan, Ann Arbor;Univ. of Michigan, Ann Arbor

  • Venue:
  • Computer - Special issue on experimental research in computer architecture
  • Year:
  • 1991

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Abstract

A performance evaluation method for comparing and improving concurrent uniprocessor architectures is introduced, and a detailed case study of its application to two machines is reported. The architectures of the machines, the IBM RS/6000 and the Astronautics ZS-1, are described. The measured performance is given, and a model that yields hard bounds on a machine's performance on a benchmark is presented. The sources of performance loss, i.e. the difference between the model-derived bounds and the measured performance, are examined, and areas for improving the architectures are determined.