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A comment on A Look at the AMD Zen 2 Core. Parent comment
Looks like an already studied technical description going back to 2005:
https://github.com/ChampSim/ChampSim/blob/master/branch/hash...
https://www.jilp.org/cbp2014/paper/DanielJimenez.pdf
> Introduced by Tarjan and Skadron 2005
> Basic idea:
> - Hash segments of branch history into different tables
> - Sum weights selected by hash functions, apply threshold to predict
> - Update the weights using perceptron learning
https://ieeexplore.ieee.org/document/4492487
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Looks like an already studied technical description going back to 2005:
https://github.com/ChampSim/ChampSim/blob/master/branch/hash...
https://www.jilp.org/cbp2014/paper/DanielJimenez.pdf
> Introduced by Tarjan and Skadron 2005
> Basic idea:
> - Hash segments of branch history into different tables
> - Sum weights selected by hash functions, apply threshold to predict
> - Update the weights using perceptron learning
https://ieeexplore.ieee.org/document/4492487