domibel opened a new pull request, #51478: URL: https://github.com/apache/arrow/pull/51478
### Rationale for this change FindMinMaxAvx2 in parquet/level_comparison_avx2.cc was not vectorised. ### What changes are included in this PR? A single xsimd kernel `FindMinMaxSimd<Arch>` in `level_comparison_simd_kernel_internal.h`, plus support for multiple architectures. ### Are these changes tested? Yes, with a nice speedup. | dispatch level | time | |---|---| | NONE | 513 ns | | SSE4_2 | 54.9 ns (9.3x) | | AVX2 | 28.7 ns (17.9x) | ### Are there any user-facing changes? No ### Was AI used for this PR? **PR code and description written by:** - [x] Human - [x] AI **Reviewed before submission by:** - [x] Human - [x] AI - [ ] Not reviewed -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
