After merging your PR, Conbench analyzed the 6 benchmarking runs that have been run so far on merge-commit dc5e23e.

Benchmarks with performance regressions

There were 0 possible performance regressions, according to the lookback z-score method.

All benchmark runs analyzed:

• Commit Run on ursa-i9-9960x at 2023-07-16 12:52:44Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2023-07-10 04:17:06Z
• Commit Run on arm64-t4g-linux-compute at 2023-07-10 04:26:48Z
• Commit Run on ec2-m5-4xlarge-us-east-2 at 2023-07-10 03:27:58Z
• Commit Run on arm64-m6g-linux-compute at 2023-07-10 04:18:50Z
• Commit Run on ursa-thinkcentre-m75q at 2023-07-13 08:09:23Z

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 2023-07-10 04:26:48Z
  • params=threads:4/task_cost:100000/real_time, source=cpp-micro, suite=arrow-thread-pool-benchmark
  • params=complex_expression/batch_size:100000/null_prob:0/bool_true_prob:50/real_time, source=cpp-micro, suite=arrow-acero-filter-benchmark