AntoinePrv opened a new issue, #46788: URL: https://github.com/apache/arrow/issues/46788
### Describe the enhancement requested `ByteStreamSplitEncode` / `ByteStreamSplitDecode` does not use SIMD instruction when `NumStreams == 2`. A performance improvement is to add support for it in `ByteStreamSplitEncodeSimd128` / `ByteStreamSplitDecodeSimd128`. https://github.com/apache/arrow/blob/57439e08cacf842ac2ce44bc72cf67196d4c184b/cpp/src/arrow/util/byte_stream_split_internal.h#L582 ### Component(s) C++ -- 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: issues-unsubscr...@arrow.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
