GH-46788: [C++][Parquet] Enable SIMD for byte stream split with 2 streams (#46789) · apache/arrow@3f95bc1 · GitHub

conbench-apache-arrow / Conbench performance report failed Jun 25, 2025

Found 1 regression

After merging your PR, Conbench analyzed the 3 benchmarking runs that have been run so far on merge-commit 3f95bc1.

Benchmarks with performance regressions

There was 1 possible performance regression, according to the lookback z-score method.

Benchmarks with regressions:

Commit Run on amd64-m5-4xlarge-linux at 2025-06-25 13:48:21Z
- partitioned-dataset-filter (R) with dataset=dataset-taxi-parquet, language=R, query=vignette

All benchmark runs analyzed:

Commit Run on arm64-t4g-2xlarge-linux at 2025-06-25 13:21:45Z
Commit Run on test-mac-arm at 2025-06-25 13:26:13Z
Commit Run on amd64-m5-4xlarge-linux at 2025-06-25 13:48:21Z

Details

This report was generated using the lookback z-score method with a z-score threshold of 30.0.

View more details on conbench-apache-arrow