Performance analysis

Use Instructions Retired Events to Evaluate Threading Methodology


Evaluate instructions-retired data in conjunction with performance data to examine the correctness of threading methodology. The Instructions Retired processor event in the VTune™ Performance Analyzer is a key performance indicator. Instructions Retired can give you quick insight into possible performance problems in your application.

  • Microsoft Windows* (XP, Vista, 7)
  • Intel® VTune™ Amplifier
  • Multi-thread apps for Multi-Core
  • How to thread?
  • Performance analysis
  • Parallel Computing
  • n-bodies: a parallel TBB solution: serial body forces one more time

    My plan to go parallel this time was thwarted by concerns that I may still have left some serial performance on the table. So I’ll take one more look (OK, well, no more than three). Leading the contenders was Jim Dempsey’s suggestion that accumulating forces instead of accelerations would save some divides. His numbers did not show a dramatic difference but did suggest summing forces to be ever so slightly faster than accumulating accelerations.

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