After merging your PR, Conbench analyzed the 4 benchmarking runs that have been run so far on merge-commit f6d0dd3.

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 2024-10-16 06:34:00Z
• Commit Run on amd64-c6a-4xlarge-linux at 2024-10-16 03:14:50Z
• Commit Run on arm64-t4g-2xlarge-linux at 2024-10-16 05:02:02Z
• Commit Run on amd64-m5-4xlarge-linux at 2024-10-16 03:28:17Z

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 2024-10-16 06:34:00Z
  • ReadCompressedBufferAsync (C++) with params=num_cols:8/is_partial:1/real_time, source=cpp-micro, suite=arrow-ipc-read-write-benchmark
  • ArrayScalarKernel (C++) with params=<Divide, Int16Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayScalarKernel (C++) with params=<Divide, Int32Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayScalarKernel (C++) with params=<Divide, Int64Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayRangeEqualsBoolean (C++) with params=65536/0, source=cpp-micro, suite=arrow-compare-benchmark
  • ReadCompressedBuffer (C++) with params=num_cols:8/is_partial:0/real_time, source=cpp-micro, suite=arrow-ipc-read-write-benchmark