NoSQ: Store-Load Communication without a Store Queue

  • Authors:
  • Tingting Sha;Milo M. K. Martin;Amir Roth

  • Affiliations:
  • University of Pennsylvania;University of Pennsylvania;University of Pennsylvania

  • Venue:
  • IEEE Micro
  • Year:
  • 2007

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Abstract

The NoSQ microarchitecture performs store-load communication without a store queue and without executing stores in the out-of-order engine. It uses speculative memory bypassing for all in-flight store-load communication, enabled by a 99.8 percent accurate store-load communication predictor. The result is a simple, fast, core data path containing no dedicated store-load forwarding structures.