Thanks for your patience. Conbench analyzed the 7 benchmarking runs that have been run so far on PR commit fdb625b.

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 ursa-i9-9960x at 2024-04-03 09:55:42Z
• Pull Request Run on ursa-thinkcentre-m75q at 2024-04-03 10:51:59Z
• Pull Request Run on ec2-m5-4xlarge-us-east-2 at 2024-04-03 12:11:03Z
• Pull Request Run on arm64-t4g-linux-compute at 2024-04-03 12:32:53Z
• Pull Request Run on test-mac-arm at 2024-04-03 12:29:21Z
• Pull Request Run on ec2-t3-xlarge-us-east-2 at 2024-04-03 14:08:09Z
• Pull Request Run on arm64-m6g-linux-compute at 2024-04-03 12:18:10Z

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 test-mac-arm at 2024-04-03 12:29:21Z

  • BM_ByteStreamSplitEncode_Double_Neon (C++) with params=1024, source=cpp-micro, suite=parquet-encoding-benchmark
  • ChunkCSVFlightsExample (C++) with source=cpp-micro, suite=arrow-csv-parser-benchmark
  • ModeKernelNarrow (C++) with params=/1048576/0, source=cpp-micro, suite=arrow-acero-aggregate-benchmark
  • RoundArrayBenchmark (C++) with params=<Round, Int32Type, RoundMode::DOWN>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-round-benchmark
  • ChunkCSVQuotedBlock (C++) with source=cpp-micro, suite=arrow-csv-parser-benchmark
  • BitRunReaderLinear (C++) with params=50, source=cpp-micro, suite=arrow-bit-util-benchmark

• Pull Request Run on arm64-m6g-linux-compute at 2024-04-03 12:18:10Z

  • FloatStridedMatrixConversionFixture (C++) with params=/ConvertToSparseCSRMatrixInt64, source=cpp-micro, suite=arrow-tensor-conversion-benchmark
  • FloatStridedMatrixConversionFixture (C++) with params=/ConvertToSparseCSRMatrixInt32, source=cpp-micro, suite=arrow-tensor-conversion-benchmark
  • FloatRowMajorMatrixConversionFixture (C++) with params=/ConvertToSparseCSRMatrixInt32, source=cpp-micro, suite=arrow-tensor-conversion-benchmark
  • FloatRowMajorMatrixConversionFixture (C++) with params=/ConvertToSparseCSRMatrixInt64, source=cpp-micro, suite=arrow-tensor-conversion-benchmark
  • FloatColumnMajorMatrixConversionFixture (C++) with params=/ConvertToSparseCSRMatrixInt32, source=cpp-micro, suite=arrow-tensor-conversion-benchmark
  • FloatColumnMajorMatrixConversionFixture (C++) with params=/ConvertToSparseCSRMatrixInt64, source=cpp-micro, suite=arrow-tensor-conversion-benchmark