conbench-apache-arrow[bot] commented on PR #39807:
URL: https://github.com/apache/arrow/pull/39807#issuecomment-2023243818

   After merging your PR, Conbench analyzed the 7 benchmarking runs that have 
been run so far on merge-commit aae2557e303601f89c4bb94ee669d9f2fb83b528.
   
   There were 8 benchmark results indicating a performance regression:
   
   - Commit Run on `ursa-i9-9960x` at [2024-03-27 
11:58:44Z](https://conbench.ursa.dev/compare/runs/fa80e81731ed4d869d729a4028a9164d...6b5443119dfe423a921731aab389b044/)
     - [`tpch` (R) with engine=arrow, format=native, language=R, 
memory_map=False, query_id=TPCH-10, 
scale_factor=1](https://conbench.ursa.dev/compare/benchmarks/066038499e6e7c6880009cf5db019362...066041fc733f7af08000dfcc5cdcf9b9)
     - [`tpch` (R) with engine=arrow, format=native, language=R, 
memory_map=False, query_id=TPCH-11, 
scale_factor=1](https://conbench.ursa.dev/compare/benchmarks/0660384e6b2c7a008000bfb97609681d...06604202ae1f72ef8000cb973ceccb5a)
   - and 6 more (see the report linked below)
   
   The [full Conbench report](https://github.com/apache/arrow/runs/23162661634) 
has more details. It also includes information about 10 possible false 
positives for unstable benchmarks that are known to sometimes produce them.


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