Eliminate table lookup in UUID.toString

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    • Type: Enhancement
    • Resolution: Fixed
    • Priority: P4
    • 25
    • Affects Version/s: 25
    • Component/s: core-libs
    • None
    • b25

      Improve the performance of UUID::toString by using Long.expand and SWAR (SIMD within a register) instead of table lookup. Eliminating the table lookup can also avoid the performance degradation problem when the cache misses.

            Assignee:
            Shaojin Wen
            Reporter:
            Shaojin Wen
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