[jira] [Created] (ARROW-17571) [Benchmarks] Default build for PyArrow seems to be debug

["Alenka Frim (Jira)" <ji...@apache.org>]

Alenka Frim created ARROW-17571:
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             Summary: [Benchmarks] Default build for PyArrow seems to be debug
                 Key: ARROW-17571
                 URL: https://issues.apache.org/jira/browse/ARROW-17571
             Project: Apache Arrow
          Issue Type: Bug
          Components: Benchmarking
            Reporter: Alenka Frim
            Assignee: Alenka Frim
             Fix For: 10.0.0


After a benchmark regression was identified in the [Python refactoring PR|https://github.com/apache/arrow/pull/13311] we identified the cause is in the build script for benchmarks. In the file _dev/conbench_envs/hooks.sh_ the script used to build PyArrow is _ci/scripts/python_build.sh_ where the default for PyArrow build type is set to *debug* (assuming _CMAKE_BUILD_TYPE_ isn't defined)

See:
[https://github.com/apache/arrow/blob/74dae618ed8d6b492bf3b88e3b9b7dfd4c21e8d8/dev/conbench_envs/hooks.sh#L60-L62]
[https://github.com/apache/arrow/blob/93b63e8f3b4880927ccbd5522c967df79e926cda/ci/scripts/python_build.sh#L55] 

I think we need to change the build type to release in _dev/conbench_envs/hooks.sh_ (_build_arrow_python()_) or maybe better to set the variable _CMAKE_BUILD_TYPE_ to release in _dev/conbench_envs/benchmarks.env_.



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