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  1. JDK
  2. JDK-8338967

Improve performance for MemorySegment::fill

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Details

    • Enhancement
    • Resolution: Fixed
    • P4
    • 24
    • 22, 23
    • core-libs

    Description

      The performance of the `MemorySegment::fil` can be improved by replacing the `checkAccess()` method call with calling `checkReadOnly()` instead (as the bounds of the segment itself do not need to be checked).

      Also, smaller segments can be handled directly by Java code rather than transitioning to native code.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-8338975 MemorySegment::fill performance deficit on aarch64

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

          Enhancement - null JDK-8339531 Improve performance of MemorySegment::mismatch

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

          Commit Commit(master) openjdk/jdk/7a418fc0

          Review Review(master) openjdk/jdk/20712

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              pminborg Per-Ake Minborg
              pminborg Per-Ake Minborg
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                Updated:
                Resolved: