After merging your PR, Conbench analyzed the 4 benchmarking runs that have been run so far on merge-commit 072eff3.

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-t3-xlarge-us-east-2 at 2024-04-08 18:52:04Z
• Commit Run on ec2-m5-4xlarge-us-east-2 at 2024-04-08 19:19:40Z
• Commit Run on arm64-t4g-linux-compute at 2024-04-08 21:41:29Z
• Commit Run on arm64-m6g-linux-compute at 2024-04-09 00:00:37Z

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 2024-04-08 21:41:29Z

  • SerialTaskGroup (C++) with params=task_cost:10000/real_time, source=cpp-micro, suite=arrow-thread-pool-benchmark

• Commit Run on arm64-m6g-linux-compute at 2024-04-09 00:00:37Z

  • BM_ByteStreamSplitDecode_Float_Scalar (C++) with params=65536, source=cpp-micro, suite=parquet-encoding-benchmark