After merging your PR, Conbench analyzed the 6 benchmarking runs that have been run so far on merge-commit 1d11df3.

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-m5-4xlarge-us-east-2 at 2023-10-23 15:12:39Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2023-10-23 15:11:14Z
• Commit Run on ursa-i9-9960x at 2023-10-23 15:02:12Z
• Commit Run on arm64-t4g-linux-compute at 2023-10-23 15:50:56Z
• Commit Run on arm64-m6g-linux-compute at 2023-10-23 15:56:56Z
• Commit Run on ursa-thinkcentre-m75q at 2023-10-23 20:38:49Z

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 2023-10-23 20:38:49Z
  • ThreadPoolSubmit (C++) with params=threads:2/task_cost:100000/real_time, source=cpp-micro, suite=arrow-thread-pool-benchmark