After merging your PR, Conbench analyzed the 5 benchmarking runs that have been run so far on merge-commit 9e2d4aa.

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 2023-10-24 22:12:25Z
• Commit Run on ec2-m5-4xlarge-us-east-2 at 2023-10-24 22:54:44Z
• Commit Run on arm64-t4g-linux-compute at 2023-10-24 23:42:21Z
• Commit Run on arm64-m6g-linux-compute at 2023-10-25 09:18:17Z
• Commit Run on ursa-thinkcentre-m75q at 2023-10-26 02:56:50Z

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 2023-10-26 02:56:50Z
  • ThreadPoolSubmit (C++) with params=threads:1/task_cost:100000/real_time, source=cpp-micro, suite=arrow-thread-pool-benchmark
  • ThreadPoolSubmit (C++) with params=threads:2/task_cost:10000/real_time, source=cpp-micro, suite=arrow-thread-pool-benchmark
  • BM_ByteStreamSplitEncode_Float_Sse2 (C++) with params=32768, source=cpp-micro, suite=parquet-encoding-benchmark
  • ThreadPoolSubmit (C++) with params=threads:2/task_cost:100000/real_time, source=cpp-micro, suite=arrow-thread-pool-benchmark