On Wed, 1 Mar 2023 17:48:46 GMT, Eirik Bjorsnos <d...@openjdk.org> wrote:
>> This PR suggests we add a vectorized equalsIgnoreCase benchmark to the set >> of benchmarks in `org.openjdk.bench.jdk.incubator.vector`. This benchmark >> serves as an example of how vectorization can be useful also in the area of >> text processing. It takes advantage of the fact that ASCII and Latin-1 were >> designed to optimize case-twiddling operations. >> >> The code came about during the work on #12632, where vectorization was >> deemed out of scope. >> >> Benchmark results: >> >> >> Benchmark (size) Mode Cnt Score Error >> Units >> EqualsIgnoreCaseBenchmark.scalar 16 avgt 15 21.575 ± 0.365 >> ns/op >> EqualsIgnoreCaseBenchmark.scalar 32 avgt 15 43.199 ± 2.786 >> ns/op >> EqualsIgnoreCaseBenchmark.scalar 64 avgt 15 71.389 ± 0.891 >> ns/op >> EqualsIgnoreCaseBenchmark.scalar 128 avgt 15 146.827 ± 1.115 >> ns/op >> EqualsIgnoreCaseBenchmark.scalar 1024 avgt 15 1062.759 ± 9.331 >> ns/op >> EqualsIgnoreCaseBenchmark.vectorized 16 avgt 15 21.483 ± 0.121 >> ns/op >> EqualsIgnoreCaseBenchmark.vectorized 32 avgt 15 10.538 ± 0.125 >> ns/op >> EqualsIgnoreCaseBenchmark.vectorized 64 avgt 15 13.182 ± 0.177 >> ns/op >> EqualsIgnoreCaseBenchmark.vectorized 128 avgt 15 19.192 ± 0.421 >> ns/op >> EqualsIgnoreCaseBenchmark.vectorized 1024 avgt 15 92.521 ± 3.494 >> ns/op > > Eirik Bjorsnos has updated the pull request incrementally with one additional > commit since the last revision: > > Add whitespace after if Marked as reviewed by psandoz (Reviewer). ------------- PR: https://git.openjdk.org/jdk/pull/12790
