On Mon, 19 Aug 2024 02:04:19 GMT, Chen Liang <li...@openjdk.org> wrote:
>> Also `Double` `Module` `Number` `Record` `Thread` `System` are susceptible >> to taking more time in `regionMatches`. > > I think you can have the current patch RFR (ready for review) without this > deduplication given my concerns. We can add deduplication of frequent > descriptors in another patch after confirming it is a net positive. regionMatches uses vectorizedMismatch for comparison. The length of `Ljava/lang/Object;` is 18. In the code without intrinsic, it will exit after two long comparisons. If there is vector128 optimization, it will exit after one comparison, and the overhead is very small. ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/20611#discussion_r1721192307
