After merging your PR, Conbench analyzed the 2 benchmarking runs that have been run so far on merge-commit ea9b15f.

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 2024-10-29 17:18:39Z
• Commit Run on amd64-m5-4xlarge-linux at 2024-10-29 17:14:35Z

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 2024-10-29 17:18:39Z

  • ShortVectorPushBack (C++) with params=<STATIC_VECTOR(int)>, source=cpp-micro, suite=arrow-small-vector-benchmark

• Commit Run on amd64-m5-4xlarge-linux at 2024-10-29 17:14:35Z

  • FloatParsing (C++) with params=, source=cpp-micro, suite=arrow-value-parsing-benchmark
  • BM_PlainEncodingSpacedBoolean (C++) with params=32768/100, source=cpp-micro, suite=parquet-encoding-benchmark
  • BM_PlainEncodingSpacedBoolean (C++) with params=32768/1, source=cpp-micro, suite=parquet-encoding-benchmark