After merging your PR, Conbench analyzed the 4 benchmarking runs that have been run so far on merge-commit 8b56d7e.

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 2025-04-07 23:34:17Z
• Commit Run on arm64-t4g-2xlarge-linux at 2025-04-07 23:57:09Z
• Commit Run on test-mac-arm at 2025-04-07 23:55:15Z
• Commit Run on amd64-m5-4xlarge-linux at 2025-04-08 04:57:05Z

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 2025-04-07 23:34:17Z

  • BenchmarkTemporalBinary (C++) with params=<YearsBetween, zoned>/524288/100, source=cpp-micro, suite=arrow-compute-scalar-temporal-benchmark
  • BenchmarkTemporalBinary (C++) with params=<DayTimeBetween, zoned>/524288/100, source=cpp-micro, suite=arrow-compute-scalar-temporal-benchmark
  • BenchmarkTemporalBinary (C++) with params=<QuartersBetween, zoned>/524288/100, source=cpp-micro, suite=arrow-compute-scalar-temporal-benchmark
  • BenchmarkTemporalBinary (C++) with params=<MonthsBetween, zoned>/524288/100, source=cpp-micro, suite=arrow-compute-scalar-temporal-benchmark

• Commit Run on test-mac-arm at 2025-04-07 23:55:15Z

  • ArrayScalarKernel (C++) with params=<AddChecked, UInt64Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark

• Commit Run on amd64-m5-4xlarge-linux at 2025-04-08 04:57:05Z

  • TouchArea (C++) with params=size:4096/real_time/threads:8, source=cpp-micro, suite=arrow-memory-pool-benchmark