Dynamic core scaling: Trading off performance and energy beyond DVFS

  title={Dynamic core scaling: Trading off performance and energy beyond DVFS},
  author={Wei Zhang and Hang Zhang and John Lach},
  journal={2015 33rd IEEE International Conference on Computer Design (ICCD)},
Dynamic voltage and frequency scaling (DVFS) is commonly employed on modern superscalar processors to reduce energy when peak performance is not needed or allowed. As technology scales, the effectiveness of DVFS is limited by the shrinking viable supply voltage range. This work proposes dynamic core scaling (DCS) to extend performance-energy tradeoff capabilities in superscalar processors. DCS ensures that programs run at a given percentage of their maximum speed and, at the same time… CONTINUE READING
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