Cascade Lake L3 Adaptive Replacement Policy

By: anon (anon.delete@this.gmail.com), March 8, 2020 2:24 pm
Room: Moderated Discussions
In https://arxiv.org/pdf/2002.03344.pdf (Understanding HPC Benchmark Performance on Intel Broadwell and Cascade Lake Processors) there is an excerpt:


Experimental analysis suggests that the replacement policy selected by the processor for streaming-access patterns involves placing new cache lines only in one of the eleven ways of each cache set—the same strategy that is used when prefetching data using the prefetchnta instruction



Does anybody know what happens if multiple physical cores are streaming sequential loads? Are a few constant of number of ways used for this (similar to DDIO) or do all the cores collide into one way for the streaming accesses?
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Cascade Lake L3 Adaptive Replacement Policyanon2020/03/08 02:24 PM
  Cascade Lake L3 Adaptive Replacement PolicyMaynard Handley2020/03/08 03:43 PM
    Cascade Lake L3 Adaptive Replacement Policyanon.12020/03/08 09:45 PM
      Cascade Lake L3 Adaptive Replacement PolicyMaynard Handley2020/03/09 10:44 AM
        Cascade Lake L3 Adaptive Replacement PolicyMichael S2020/03/09 11:21 AM
          Cascade Lake L3 Adaptive Replacement PolicyMaynard Handley2020/03/09 11:18 PM
            Cascade Lake L3 Adaptive Replacement PolicyMichael S2020/03/10 12:49 AM
              Cascade Lake L3 Adaptive Replacement PolicyMaynard Handley2020/03/10 02:03 PM
                Cascade Lake L3 Adaptive Replacement PolicyEtienne2020/03/11 02:52 AM
        Cascade Lake L3 Adaptive Replacement Policyanon.12020/03/09 07:32 PM
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