Prediction of CPU idle-busy activity pattern

@article{Diao2008PredictionOC,
  title={Prediction of CPU idle-busy activity pattern},
  author={Qian Diao and Justin J. Song},
  journal={2008 IEEE 14th International Symposium on High Performance Computer Architecture},
  year={2008},
  pages={27-36}
}
Real-world workloads rarely saturate multi-core processor. CPU C-states can be used to reduce power consumption during processor idle time. The key unsolved problem is: when and how to use which C-state. We propose a machine learning prediction method and usage model. We evaluate this model with idle traces collected on dual-core and quad-core processor, and find this method can well predict CPUpsilas activity pattern at the error level not exceeding 4%. Compared with existing OS C-state policy… CONTINUE READING

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