After merging your PR, Conbench analyzed the 4 benchmarking runs that have been run so far on merge-commit 0707c04.

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 2024-10-08 15:29:19Z
• Commit Run on arm64-t4g-2xlarge-linux at 2024-10-08 15:48:04Z
• Commit Run on amd64-m5-4xlarge-linux at 2024-10-08 19:50:27Z
• Commit Run on test-mac-arm at 2024-10-09 01:47:43Z

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-m5-4xlarge-linux at 2024-10-08 19:50:27Z

  • RoundArrayBenchmark (C++) with params=<Round, DoubleType, RoundMode::DOWN>/size:1048576/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-round-benchmark

• Commit Run on test-mac-arm at 2024-10-09 01:47:43Z

  • BM_ComputeHash (C++) with params=, source=cpp-micro, suite=parquet-bloom-filter-benchmark
  • BM_PlainDecodingSpacedByteArray (C++) with params=max-string-length:64/batch-size:2048, source=cpp-micro, suite=parquet-encoding-benchmark