Thanks for your patience. Conbench analyzed the 6 benchmarking runs that have been run so far on PR commit 6b88733.

Benchmarks with performance regressions

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

All benchmark runs analyzed:

• Pull Request Run on ec2-t3-xlarge-us-east-2 at 2023-08-21 16:26:51Z
• Pull Request Run on ursa-i9-9960x at 2023-08-21 18:06:37Z
• Pull Request Run on ec2-m5-4xlarge-us-east-2 at 2023-08-21 16:28:27Z
• Pull Request Run on ursa-thinkcentre-m75q at 2023-08-21 18:57:17Z
• Pull Request Run on arm64-t4g-linux-compute at 2023-08-21 19:01:24Z
• Pull Request Run on arm64-m6g-linux-compute at 2023-08-21 17:15:08Z

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.

• Pull Request Run on ursa-thinkcentre-m75q at 2023-08-21 18:57:17Z

  • BM_DefinitionLevelsToBitmapRepeatedAllMissing (C++) with source=cpp-micro, suite=parquet-level-conversion-benchmark
  • BM_ComputeHash (C++) with params=, source=cpp-micro, suite=parquet-bloom-filter-benchmark
  • BM_ComputeHash (C++) with params=, source=cpp-micro, suite=parquet-bloom-filter-benchmark
  • BM_BatchComputeHash (C++) with params=, source=cpp-micro, suite=parquet-bloom-filter-benchmark
  • BM_ComputeHash (C++) with params=, source=cpp-micro, suite=parquet-bloom-filter-benchmark
  • HashIntegers (C++) with source=cpp-micro, suite=arrow-hashing-benchmark
  • BM_BatchComputeHash (C++) with params=, source=cpp-micro, suite=parquet-bloom-filter-benchmark
  • BM_BatchComputeHash (C++) with params=, source=cpp-micro, suite=parquet-bloom-filter-benchmark
  • BM_ComputeHash (C++) with params=, source=cpp-micro, suite=parquet-bloom-filter-benchmark
  • BM_BatchComputeHash (C++) with params=, source=cpp-micro, suite=parquet-bloom-filter-benchmark
  • BM_ComputeHash (C++) with params=, source=cpp-micro, suite=parquet-bloom-filter-benchmark
  • BM_BatchComputeHash (C++) with params=, source=cpp-micro, suite=parquet-bloom-filter-benchmark

• Pull Request Run on arm64-t4g-linux-compute at 2023-08-21 19:01:24Z

  • ThreadedTaskGroup (C++) with params=threads:2/task_cost:100000/real_time, source=cpp-micro, suite=arrow-thread-pool-benchmark