After merging your PR, Conbench analyzed the 2 benchmarking runs that have been run so far on merge-commit 8b50bb1.

Benchmarks with performance regressions

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

All benchmark runs analyzed:

• Commit Run on arm64-t4g-2xlarge-linux at 2026-02-24 17:00:34Z
• Commit Run on amd64-c6a-4xlarge-linux at 2026-02-24 16:37:51Z

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 arm64-t4g-2xlarge-linux at 2026-02-24 17:00:34Z

  • BM_ComputeHash (C++) with params=, source=cpp-micro, suite=parquet-bloom-filter-benchmark
  • BM_BatchComputeHash (C++) with params=, source=cpp-micro, suite=parquet-bloom-filter-benchmark
  • BM_ComputeHash (C++) with params=, source=cpp-micro, suite=parquet-bloom-filter-benchmark
  • IntegerParsing (C++) with params=, source=cpp-micro, suite=arrow-value-parsing-benchmark

• Commit Run on amd64-c6a-4xlarge-linux at 2026-02-24 16:37:51Z

  • BinaryBitmapReaderSum (C++) with params=32768, source=cpp-micro, suite=arrow-bit-block-counter-benchmark