After merging your PR, Conbench analyzed the 5 benchmarking runs that have been run so far on merge-commit b089c6a.

Benchmarks with performance regressions

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

All benchmark runs analyzed:

• Commit Run on test-mac-arm at 2024-02-23 00:43:53Z
• Commit Run on ec2-m5-4xlarge-us-east-2 at 2024-02-22 23:00:12Z
• Commit Run on arm64-m6g-linux-compute at 2024-02-23 00:45:25Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2024-02-22 22:31:08Z
• Commit Run on arm64-t4g-linux-compute at 2024-02-22 23:54:11Z

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-m6g-linux-compute at 2024-02-23 00:45:25Z

  • BM_RleEncoding (C++) with params=65536/8, source=cpp-micro, suite=parquet-column-io-benchmark

• Commit Run on arm64-t4g-linux-compute at 2024-02-22 23:54:11Z

  • DetectUIntWidthNulls (C++) with source=cpp-micro, suite=arrow-int-util-benchmark
  • DetectIntWidthNulls (C++) with source=cpp-micro, suite=arrow-int-util-benchmark