conbench-apache-arrow[bot] commented on PR #38347:
URL: https://github.com/apache/arrow/pull/38347#issuecomment-1782358128

   After merging your PR, Conbench analyzed the 6 benchmarking runs that have 
been run so far on merge-commit e8360615adf6c5a9bb76b81267d08388c7cfc3a9.
   
   There were 9 benchmark results indicating a performance regression:
   
   - Commit Run on `ursa-i9-9960x` at [2023-10-25 
20:26:51Z](https://conbench.ursa.dev/compare/runs/246b7fbd46f64e16a2aa8a227bb0684e...71aa633680104348a12b4310f6601e96/)
     - [`tpch` (R) with engine=arrow, format=native, language=R, 
memory_map=False, query_id=TPCH-16, 
scale_factor=1](https://conbench.ursa.dev/compare/benchmarks/065393121d667489800037f8a93b0191...0653996a61837c198000635016300574)
     - [`tpch` (R) with engine=arrow, format=parquet, language=R, 
memory_map=False, query_id=TPCH-10, 
scale_factor=1](https://conbench.ursa.dev/compare/benchmarks/065392e845f17c498000f3d8ce49bc37...0653993642c274cb80002874ffae01df)
   - and 7 more (see the report linked below)
   
   The [full Conbench report](https://github.com/apache/arrow/runs/18109793874) 
has more details. It also includes information about 1 possible false positive 
for unstable benchmarks that are known to sometimes produce them.


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