After merging your PR, Conbench analyzed the 3 benchmarking runs that have been run so far on merge-commit 3c5825b.

Benchmarks with performance regressions

There were 0 possible performance regressions, according to the lookback z-score method.

All benchmark runs analyzed:

• Commit Run on amd64-c6a-4xlarge-linux at 2026-03-12 14:37:21Z
• Commit Run on arm64-t4g-2xlarge-linux at 2026-03-12 15:24:28Z
• Commit Run on amd64-m5-4xlarge-linux at 2026-03-12 15:24:52Z

Unstable benchmarks with performance regressions

The following benchmark results indicate a possible performance regression, but are known to sometimes produce false positives when applying the lookback z-score analysis.

• Commit Run on amd64-c6a-4xlarge-linux at 2026-03-12 14:37:21Z
  • BenchmarkTemporalBinary (C++) with params=<MonthsBetween, non_zoned>/524288/0, source=cpp-micro, suite=arrow-compute-scalar-temporal-benchmark
  • BM_UnpackUint32 (C++) with params=Avx2Unaligned/8/32, source=cpp-micro, suite=arrow-bpacking-benchmark