On Tue, 21 Feb 2023 09:33:07 GMT, Eirik Bjorsnos <d...@openjdk.org> wrote:
> I have the feeling that most case-insensitive comparisons are pretty short, > so not sure how useful this is IRL. There seems to be a win from strings of size 32 bytes upwards. (That's probably longer than most keys in TreeMaps using String.CASE_INSENSITIVE_ORDER, such as j.n.h.HttpHeaders) Benchmark (size) Mode Cnt Score Error Units EqualsIgnoreCase.scalar 16 avgt 2 20.608 ns/op EqualsIgnoreCase.scalar 32 avgt 2 36.510 ns/op EqualsIgnoreCase.vectorized 16 avgt 2 18.601 ns/op EqualsIgnoreCase.vectorized 32 avgt 2 12.795 ns/op This is outside scope for this PR, I just wanted to leave a trace of this observation here for future record. ------------- PR: https://git.openjdk.org/jdk/pull/12623
