A High-Performance Set-Associative Cache Architecture with Speculative Way-Selection

6 References
  • INOUE Koji
    Department of Computer Science and Communication Engineering, Kyushu University
  • ISHIHARA Tohru
    Department of Computer Science and Communication Engineering, Kyushu University
  • MURAKAMI Kazuaki
    Department of Computer Science and Communication Engineering, Kyushu University

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Other Title
  • 投機的ウェイ選択による高性能セット・アソシアティブ・キャッシュ方式とその性能評価

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Description

We have proposed a novel cache architecture for performance/energy efficiency, called"way-predictable set-associative cache(or way-predictable cache)". In general, conventional set-associative caches have several ways, and a only way is selected based on the result of tag comparisons. This process makes the cache access time longer. On the other hand, the way-predictable cache predicts a way having a data which will be referenced by the processor before tag comparisons. So, access speed of the way-predictable cache is faster than that of conventional set-associative caches due to the specurative way-selection. The way-predictable cache can achieve fast access just like direct-mapped caches, at the same time, higher hit rate is maintained due to set-associative method. We have quantitatively evaluated the way-predictable cache with many benchmarks. As the results, it is observed that the performance improvement achieved by an way-predictable cache is about 20%, compared to a conventional set-associative cache.

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Details 詳細情報について

  • CRID
    1572824502243870336
  • NII Article ID
    110003180283
  • NII Book ID
    AN10013141
  • Text Lang
    ja
  • Data Source
    • CiNii Articles

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