After merging your PR, Conbench analyzed the 6 benchmarking runs that have been run so far on merge-commit 2ea7f79.

Benchmarks with performance regressions

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

All benchmark runs analyzed:

• Commit Run on ec2-m5-4xlarge-us-east-2 at 2023-12-05 17:55:07Z
• Commit Run on ursa-i9-9960x at 2023-12-05 21:10:36Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2023-12-05 17:39:54Z
• Commit Run on arm64-t4g-linux-compute at 2023-12-05 18:55:50Z
• Commit Run on ursa-thinkcentre-m75q at 2023-12-05 21:49:00Z
• Commit Run on arm64-m6g-linux-compute at 2023-12-05 20:22:41Z

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 ursa-thinkcentre-m75q at 2023-12-05 21:49:00Z

  • ArrayArrayKernel (C++) with params=<Multiply, Int64Type>/size:524288/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayArrayKernel (C++) with params=<Multiply, Int64Type>/size:524288/inverse_null_proportion:100, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark

• Commit Run on arm64-m6g-linux-compute at 2023-12-05 20:22:41Z

  • ReadMmapUncachedFileAsync (C++) with params=num_cols:8/is_partial:0/real_time, source=cpp-micro, suite=arrow-ipc-read-write-benchmark