Discerning the dominant out-of-order performance advantage: is it speculation or dynamism?

@inproceedings{McFarlin2013DiscerningTD,
  title={Discerning the dominant out-of-order performance advantage: is it speculation or dynamism?},
  author={Daniel S. McFarlin and Charles Tucker and Craig B. Zilles},
  booktitle={ASPLOS},
  year={2013}
}
In this paper, we set out to study the performance advantages of an Out-of-Order (OOO) processor relative to in-order processors with similar execution resources. In particular, we try to tease apart the performance contributions from two sources: the improved sched- ules enabled by OOO hardware speculation support and its ability to generate different schedules on different occurrences of the same instructions based on operand and functional unit availability. We find that the ability to… CONTINUE READING
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