Rock: A High-Performance Sparc CMT Processor

  • Authors:
  • Shailender Chaudhry;Robert Cypher;Magnus Ekman;Martin Karlsson;Anders Landin;Sherman Yip;Håkan Zeffer;Marc Tremblay

  • Affiliations:
  • Sun Microsystems;Sun Microsystems;Sun Microsystems;Sun Microsystems;Sun Microsystems;Sun Microsystems;Sun Microsystems;Sun Microsystems

  • Venue:
  • IEEE Micro
  • Year:
  • 2009

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Abstract

Rock, Sun's third-generation chip-multithreading processor, contains 16 high-performance cores, each of which can support two software threads. Rock uses a novel checkpoint-based architecture to support automatic hardware scouting under a load miss, speculative out-of-order retirement of instructions, and aggressive dynamic hardware parallelization of a sequential instruction stream. It is also the first processor to support transactional memory in hardware.