Measuring and Improving the Performance of 4.2BSD

Abstract

The 4.2 Berkeley Software Distribution of UNIX for the VAX has several problems that can severely affect the overall performance of the system. These problems were identified with kernel profiling and system tracing during day to day use. Once potential problem areas had been identified benchmark programs were devised to highlight the bottlenecks. These benchmarks verified that the problems existed and provided a metric against which to validate proposed solutions. This paper examines the performance problems encountered and describes modifications that have been made to the system since the initial distribution. Suggestions for further performance improvements are given.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1984
Accession Number
ADA611681

Entities

People

  • M. K. Mckusick
  • Mike Karels
  • Sam Leffler

Organizations

  • University of California, Berkeley

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  • Materials and Manufacturing Processes

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  • Clocks
  • Computer Programs
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  • Computer science

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