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AMD Zen 2 "Znver2" Optimizations With LLVM Clang 10 Bring Some Improvements

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  • AMD Zen 2 "Znver2" Optimizations With LLVM Clang 10 Bring Some Improvements

    Phoronix: AMD Zen 2 "Znver2" Optimizations With LLVM Clang 10 Bring Some Improvements

    With LLVM Clang 10 having added a Zen 2 scheduler model tuned for the latest AMD CPUs over the existing "znver2" tuning that had just copied the Zen 1 scheduler, here are some benchmarks looking at the LLVM Clang 9 vs. 10 compiler performance on AMD EPYC when making use of "-march=znver2" optimizations...

    http://www.phoronix.com/scan.php?pag...Clang-10-Tests

  • #2
    Zen 2 tuning is going to get better down the road as Sony's compiler engineers also did a lot of work on Jaguar upstream.

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    • #3
      AMD would do well to provide contributions here.

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      • #4
        Openssl regresion is fixed now (problem in openssl compile scripts).
        Michael can you use version with backported fix ?

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        • #5
          Can you compare ┬┤znver2┬┤ for clang vs gcc?

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          • #6
            Originally posted by ms178 View Post
            Zen 2 tuning is going to get better down the road as Sony's compiler engineers also did a lot of work on Jaguar upstream.
            Very cool, didn't know about that, glad to hear at least one console maker is upstreaming patches!

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            • #7
              Originally posted by torsionbar28 View Post
              Very cool, didn't know about that, glad to hear at least one console maker is upstreaming patches!
              https://www.phoronix.com/scan.php?pa...-Btver2-Tuning
              Michael Larabel
              http://www.michaellarabel.com/

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