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  1. JDK
  2. JDK-8341649

Regressions with large metaspace apps after 8338526

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    • b15
    • b27

      While working on apps with a large metaspace size (over 100k classes for example) I saw some regressions that I eventually tracked back to JDK-8338526.
      I wrote a JMH to show the problem based on the existing vm/compiler/CodeCacheStress.java which I pushed on a branch here:
      https://github.com/ericcaspole/jdk/blob/JDK-8338526/test/micro/org/openjdk/bench/vm/runtime/MethodHandleStress.java

      This JMH can probably simplified and still show the problem, but it's a start.
      On our aurora harness it shows 4-18% regressions depending on the platform.

            coleenp Coleen Phillimore
            ecaspole Eric Caspole
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