Zen2 instruction latency/throughput dump

By: Kyle Siefring (kylesiefring.delete@this.gmail.com), July 13, 2019 4:06 pm
Room: Moderated Discussions
http://users.atw.hu/instlatx64/AuthenticAMD0870F10_K17_Matisse_InstLatX64.txt

Intel has a consistant latencies for all crosslane operations. AMD does not. This is new since AMD added full sized vectors in Zen 2.

Notably:
64-bit broadcasts onto 256-bit vectors has 1 latency/1 throughput.
32-bit and 64-bit permutates have large latencies.
Inserting 128-bits onto 256-bits seems to have 1 latency. Extracting does not.
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TopicPosted ByDate
Zen2 instruction latency/throughput dumpKyle Siefring2019/07/13 04:06 PM
  Zen2 instruction latency/throughput dumpTravis Downs2019/07/13 06:48 PM
    Zen2 instruction latency/throughput dumpTravis Downs2019/07/13 06:50 PM
  Zen2 instruction latency/throughput dump-.-2019/07/13 08:11 PM
    Zen2 instruction latency/throughput dumpGeoff Langdale2019/07/14 12:50 AM
      Zen2 instruction latency/throughput dump-.-2019/07/14 06:12 PM
        Zen2 instruction latency/throughput dumpGian-Carlo Pascutto2019/07/15 12:06 PM
          Zen2 instruction latency/throughput dumpTravis Downs2019/07/16 12:21 PM
            Zen2 instruction latency/throughput dumpGian-Carlo Pascutto2019/07/17 12:29 AM
              Zen2 instruction latency/throughput dumpMichael S2019/07/17 01:34 AM
              Zen2 instruction latency/throughput dumpTravis Downs2019/07/17 07:41 AM
                Zen2 instruction latency/throughput dumpGian-Carlo Pascutto2019/07/18 07:35 AM
                Zen2 instruction latency/throughput dumpGian-Carlo Pascutto2019/07/18 07:39 AM
                  Zen2 instruction latency/throughput dumpAnonymous Coward2019/07/18 07:51 AM
                    Zen2 instruction latency/throughput dumpTravis Downs2019/07/18 11:05 AM
                      Zen2 instruction latency/throughput dumpGian-Carlo Pascutto2019/07/19 01:00 AM
                  Zen2 instruction latency/throughput dumpTravis2019/07/18 07:57 AM
          What are PDEP/PEXT good for? (NT)Michael S2019/07/16 02:42 PM
            What are PDEP/PEXT good for?Montaray Jack2019/07/16 03:09 PM
              What are PDEP/PEXT good for?Montaray Jack2019/07/16 03:51 PM
            What are PDEP/PEXT good for?Travis Downs2019/07/16 05:52 PM
            What are PDEP/PEXT good for?gallier22019/07/16 10:32 PM
              What are PDEP/PEXT good for?Michael S2019/07/17 01:01 AM
            What are PDEP/PEXT good for?Tim McCaffrey2019/07/17 06:34 AM
        Zen2 instruction latency/throughput dumpTravis Downs2019/07/16 12:27 PM
          Zen2 instruction latency/throughput dumpMontaray Jack2019/07/16 04:26 PM
          Thanks for the info (NT)-.-2019/07/16 06:29 PM
          Zen2 instruction latency/throughput dumpMegol2019/07/17 06:21 AM
            Zen2 instruction latency/throughput dumpTravis Downs2019/07/17 07:53 AM
              Zen2 instruction latency/throughput dumpDavid Hess2019/07/19 05:20 AM
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