The Midlifekicker Microarchitecture Evaluation Metric

  • Authors:

  • Stamatis Vassiliadis;Leonel Sousa;Georgi N. Gaydadjiev

  • Affiliations:

  • Computer Engineering TU Delft the Netherlands;Electrical and Computer Engineering IST/INESC-ID Lisboa, Portugal;Computer Engineering TU Delft the Netherlands

  • Venue:
  • ASAP '05 Proceedings of the 2005 IEEE International Conference on Application-Specific Systems, Architecture Processors
  • Year:
  • 2005

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Abstract

We introduce the midlifekicker metric for evaluating microarchitectures mostly during the design process. We assume a microarchitecturedesigned at a time T-1 and estimate if a newmicroarchitecture projected for time T has advantages over the microarchitecture designed at T-1 and remapped on the same technology at time T. We consider that microarchitects minimize the product cycles per instruction (CPI( x cycle time and estimate performance based on CPI with a "soft-threshold" to include cycle time product effects. Some measurements are also reported.