On Mon, 19 May 2025 23:53:07 GMT, Shaojin Wen <s...@openjdk.org> wrote:
>> 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. > > Shaojin Wen has updated the pull request incrementally with one additional > commit since the last revision: > > hex8 comments src/java.base/share/classes/java/util/UUID.java line 492: > 490: * achieving significantly better performance compared to > traditional loop-based conversion. > 491: * > 492: * <p>The conversion algorithm works as follows: I think the in-line comment describing the algorithm is enough - doesn't need the details in the javadoc as well. ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/22928#discussion_r2099078808
