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CPI2 : CPU performance isolation for shared compute clusters

论文原址: http://research.google.com/pubs/pub40737.html

This paper describes CPI2, a system that builds on the useful properties of CPI measures to automate all of the following:

  1. observe the run-time performance of hundreds to thousands of tasks belonging to the same job, and learn to distinguish normal performance from outliers
  2. identify performance interference within a few minutes by detecting such outliers
  3. determine which antagonist applications are the likely cause with an online cross-correlation analysis
  4. (if desired) ameliorate the bad behavior by throttling or migrating the antagonists.

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