Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8273585

String.charAt performance degrades due to JDK-8268698

    XMLWordPrintable

    Details

    • Subcomponent:
    • Introduced In Version:
      18
    • Resolved In Build:
      b21

      Description

      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

        Attachments

          Issue Links

          relates to

          Enhancement - null JDK-8268698 Use Objects.check{Index,FromToIndex,FromIndexSize} for java.base

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Resolved
          links to

          Commit Commit openjdk/jdk/b0d1e4ff

          Review Review openjdk/jdk/6096

            Activity

              People

              Assignee:
              yyang Yi Yang
              Reporter:
              jzhu Joshua Zhu
              Votes:
              0 Vote for this issue
              Watchers:
              4 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved: