After merging your PR, Conbench analyzed the 5 benchmarking runs that have been run so far on merge-commit f1a32a5.

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 2023-10-18 07:42:51Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2023-10-18 07:37:13Z
• Commit Run on arm64-t4g-linux-compute at 2023-10-18 08:30:25Z
• Commit Run on arm64-m6g-linux-compute at 2023-10-18 18:57:29Z
• Commit Run on ursa-thinkcentre-m75q at 2023-10-20 22:51:44Z

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-linux-compute at 2023-10-18 08:30:25Z

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

• Commit Run on arm64-m6g-linux-compute at 2023-10-18 18:57:29Z

  • ArrayScalarKernel (C++) with params=<Subtract, Int8Type>/size:1048576/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark

• Commit Run on ursa-thinkcentre-m75q at 2023-10-20 22:51:44Z

  • BenchmarkBitmapVisitUInt8And (C++) with params=32768/1, source=cpp-micro, suite=arrow-bit-util-benchmark
  • BenchmarkBitmapVisitUInt8And (C++) with params=131072/2, source=cpp-micro, suite=arrow-bit-util-benchmark
  • BenchmarkBitmapVisitUInt8And (C++) with params=131072/1, source=cpp-micro, suite=arrow-bit-util-benchmark
  • BenchmarkBitmapVisitUInt8And (C++) with params=32768/2, source=cpp-micro, suite=arrow-bit-util-benchmark