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  1. JDK
  2. JDK-8151775

aarch64: add support for 8.1 LSE atomic operations

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Details

    • Enhancement
    • Status: Resolved
    • P4
    • Resolution: Fixed
    • 9
    • 9
    • hotspot
    • None
    • b115
    • aarch64
    • linux

    Backports

      Description

        This issue proposes the addition of support for 8.1 LSE atomic operations.

        There are 2 atomic operations which may be useful

        ldadd which atomically adds a value to memory
        swp which atomically swaps a value into memory

        These new instructions offer performance advantages over the existing implementations using exclusive regions.

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                enevill Ed Nevill
                enevill Ed Nevill
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                  Created:
                  Updated:
                  Resolved: