After merging your PR, Conbench analyzed the 7 benchmarking runs that have been run so far on merge-commit 1d966e9.

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 2024-03-06 23:38:33Z
• Commit Run on ec2-m5-4xlarge-us-east-2 at 2024-03-06 22:40:37Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2024-03-06 22:11:50Z
• Commit Run on ursa-i9-9960x at 2024-03-06 22:07:12Z
• Commit Run on arm64-t4g-linux-compute at 2024-03-07 00:34:21Z
• Commit Run on ursa-thinkcentre-m75q at 2024-03-07 00:23:28Z
• Commit Run on arm64-m6g-linux-compute at 2024-03-07 00:24:13Z

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 2024-03-07 00:23:28Z
  • BM_DeltaBitPackingDecode_Int64_Fixed (C++) with params=1024, source=cpp-micro, suite=parquet-encoding-benchmark
  • ArrayArrayKernel (C++) with params=<Multiply, DoubleType>/size:524288/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • BM_DeltaBitPackingDecode_Int64_Fixed (C++) with params=4096, source=cpp-micro, suite=parquet-encoding-benchmark
  • ArrayRangeEqualsBoolean (C++) with params=32768/1, source=cpp-micro, suite=arrow-compare-benchmark