After merging your PR, Conbench analyzed the 6 benchmarking runs that have been run so far on merge-commit 57c028f.

Benchmarks with performance regressions

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

All benchmark runs analyzed:

• Commit Run on arm64-m6g-linux-compute at 2023-11-01 15:45:49Z
• Commit Run on ursa-i9-9960x at 2023-11-01 14:46:15Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2023-11-01 15:01:14Z
• Commit Run on ec2-m5-4xlarge-us-east-2 at 2023-11-01 15:02:50Z
• Commit Run on arm64-t4g-linux-compute at 2023-11-01 15:48:40Z
• Commit Run on ursa-thinkcentre-m75q at 2023-11-01 17:09:08Z

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-m6g-linux-compute at 2023-11-01 15:45:49Z

  • ThreadedTaskGroup (C++) with params=threads:8/task_cost:100000/real_time, source=cpp-micro, suite=arrow-thread-pool-benchmark

• Commit Run on ursa-thinkcentre-m75q at 2023-11-01 17:09:08Z

  • BitmapReaderSum (C++) with params=65536, source=cpp-micro, suite=arrow-bit-block-counter-benchmark
  • BitmapReaderSum (C++) with params=32768, source=cpp-micro, suite=arrow-bit-block-counter-benchmark
  • Constants (C++) with source=cpp-micro, suite=arrow-decimal-benchmark
  • BitmapReaderSumWithOffset (C++) with params=32768, source=cpp-micro, suite=arrow-bit-block-counter-benchmark
  • MaxElementWiseArrayArrayInt64 (C++) with params=32768/1, source=cpp-micro, suite=arrow-compute-scalar-compare-benchmark
  • BitmapReaderSumWithOffset (C++) with params=65536, source=cpp-micro, suite=arrow-bit-block-counter-benchmark