Hardware/software tradeoffs for increased performance

  • Authors:
  • John Hennessy;Norman Jouppi;Forest Baskett;Thomas Gross;John Gill

  • Affiliations:
  • Department of Electrical Engineering and Computer Science, Stanford University;Department of Electrical Engineering and Computer Science, Stanford University;Department of Electrical Engineering and Computer Science, Stanford University;Department of Electrical Engineering and Computer Science, Stanford University;Department of Electrical Engineering and Computer Science, Stanford University

  • Venue:
  • ASPLOS I Proceedings of the first international symposium on Architectural support for programming languages and operating systems
  • Year:
  • 1982

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Abstract

Most new computer architectures are concerned with maximizing performance by providing suitable instruction sets for compiled code and providing support for systems functions. We argue that the most effective design methodology must make simultaneous tradeoffs across all three areas: hardware, software support, and systems support. Recent trends lean towards extensive hardware support for both the compiler and operating systems software. However, consideration of all possible design tradeoffs may often lead to less hardware support. Several examples of this approach are presented, including: omission of condition codes, word-addressed machines, and imposing pipeline interlocks in software. The specifics and performance of these approaches are examined with respect to the MIPS processor.