After merging your PR, Conbench analyzed the 7 benchmarking runs that have been run so far on merge-commit d3ae788.

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 2024-02-29 15:45:34Z
• Commit Run on ec2-m5-4xlarge-us-east-2 at 2024-02-29 15:22:08Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2024-02-29 13:30:16Z
• Commit Run on ursa-i9-9960x at 2024-02-29 15:26:49Z
• Commit Run on arm64-t4g-linux-compute at 2024-02-29 15:45:21Z
• Commit Run on arm64-m6g-linux-compute at 2024-02-29 15:34:35Z
• Commit Run on ursa-thinkcentre-m75q at 2024-02-29 16:31:40Z

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 test-mac-arm at 2024-02-29 15:45:34Z

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

• Commit Run on ursa-thinkcentre-m75q at 2024-02-29 16:31:40Z

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