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  1. JDK
  2. JDK-8289161

Regressions 2-3% on some Renaissance after 8275201

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    • b22
    • x86_64
    • linux

    Description


      Renaissance-FutureGenetic -2.06%
      Renaissance-Mnemonics -2.02%
      Renaissance-PageRank -3.67%
      Renaissance-ParMnemonics -3.00%

      I have been able to repro these on IceLake and CascadeLake type systems.

      We are running renaissance-jmh-assembly-0.14.1.jar , here are the run options:

      FutureGenetic -t 1 -i 15 -wi 25 -f 10
      JmhMnemonics -bm avgt -t 1 -w 9 -wi 10 -r 5 -i 10 -f 10

      PageRank requires jvmArgs: -XX:+IgnoreUnrecognizedVMOptions --add-opens=java.base/java.nio=ALL-UNNAMED --add-opens=java.base/sun.nio.ch=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED -XX:-IgnoreUnrecognizedVMOptions

      PageRank -bm avgt -t 1 -w 9 -wi 10 -r 5 -i 10 -f 5
      ParMnemonics -bm avgt -t 1 -w 9 -wi 10 -r 5 -i 10 -f 10

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              roland Roland Westrelin
              ecaspole Eric Caspole
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