After merging your PR, Conbench analyzed the 4 benchmarking runs that have been run so far on merge-commit 66cb749.

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-c6a-4xlarge-us-east-2 at 2024-08-05 09:53:05Z
• Commit Run on test-mac-arm at 2024-08-05 09:59:35Z
• Commit Run on arm64-t4g-linux-compute at 2024-08-05 10:33:12Z
• Commit Run on ec2-m5-4xlarge-us-east-2 at 2024-08-05 11:18:36Z

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 ec2-m5-4xlarge-us-east-2 at 2024-08-05 11:18:36Z
  • BM_ComputeHash (C++) with params=, source=cpp-micro, suite=parquet-bloom-filter-benchmark
  • DoubleColumnMajorTensorConversionFixture (C++) with params=/ConvertToSparseCOOTensorInt32, source=cpp-micro, suite=arrow-tensor-conversion-benchmark
  • ThreadedTaskGroup (C++) with params=threads:8/task_cost:100000/real_time, source=cpp-micro, suite=arrow-thread-pool-benchmark