After merging your PR, Conbench analyzed the 5 benchmarking runs that have been run so far on merge-commit fe2d926.

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 2024-05-28 18:44:06Z
• Commit Run on ec2-m5-4xlarge-us-east-2 at 2024-05-28 14:12:26Z
• Commit Run on arm64-t4g-linux-compute at 2024-05-28 15:51:55Z
• Commit Run on test-mac-arm at 2024-05-29 01:14:03Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2024-05-29 06:01:41Z

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 2024-05-28 15:51:55Z

  • BenchmarkTemporalRounding (C++) with params=<FloorTemporal, non_zoned, round_1_minute>/1048576/100, source=cpp-micro, suite=arrow-compute-scalar-temporal-benchmark
  • BenchmarkTemporal (C++) with params=<Millisecond, non_zoned>/1048576/100, source=cpp-micro, suite=arrow-compute-scalar-temporal-benchmark
  • HexParsing (C++) with params=, source=cpp-micro, suite=arrow-value-parsing-benchmark
  • BenchmarkTemporalRounding (C++) with params=<FloorTemporal, non_zoned, round_10_minute>/1048576/100, source=cpp-micro, suite=arrow-compute-scalar-temporal-benchmark
  • BenchmarkTemporalRounding (C++) with params=<CeilTemporal, non_zoned, round_1_minute>/1048576/100, source=cpp-micro, suite=arrow-compute-scalar-temporal-benchmark
  • BenchmarkTemporalBinary (C++) with params=<YearsBetween, date64_type>/1048576/0, source=cpp-micro, suite=arrow-compute-scalar-temporal-benchmark
  • BenchmarkTemporal (C++) with params=<Day, non_zoned>/1048576/0, source=cpp-micro, suite=arrow-compute-scalar-temporal-benchmark
  • BenchmarkTemporalRounding (C++) with params=<FloorTemporal, non_zoned, round_1_minute>/1048576/0, source=cpp-micro, suite=arrow-compute-scalar-temporal-benchmark

• Commit Run on test-mac-arm at 2024-05-29 01:14:03Z

  • GrouperWithMultiTypes (C++) with params="{fixed_size_binary(32)}"/4096/10000, source=cpp-micro, suite=arrow-compute-grouper-benchmark
  • ProjectionOverhead (C++) with params=complex_expression/batch_size:1000000/real_time, source=cpp-micro, suite=arrow-acero-project-benchmark
  • GrouperWithMultiTypes (C++) with params="{fixed_size_binary(32)}"/4096/10, source=cpp-micro, suite=arrow-compute-grouper-benchmark
  • ProjectionOverheadIsolated (C++) with params=simple_expression/batch_size:10000/real_time, source=cpp-micro, suite=arrow-acero-project-benchmark

• Commit Run on ec2-t3-xlarge-us-east-2 at 2024-05-29 06:01:41Z

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