String.charAt performance degrades due to JDK-8268698

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      The attached program shows that the performance degradation over 100% after JDK-8268698.

      The result of
      "time linux-x86_64-server-release/images/jdk/bin/java Test":

      Before JDK-8268698,
          real 0m8.369s
          user 0m8.386s
          sys 0m0.019s

      After JDK-8268698,
          real 0m19.722s
          user 0m19.748s
          sys 0m0.013s

        1. Test.java
          3 kB

            Assignee:
            Yi Yang
            Reporter:
            Joshua Zhu
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              Created:
              Updated:
              Resolved: