[jira] [Commented] (ARROW-13221) [C++] arrow_reader_writer_test.cc slow to compile

["Antoine Pitrou (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARROW-13221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17640576#comment-17640576 ] 

Antoine Pitrou commented on ARROW-13221:
----------------------------------------

I think there are two aspects to this:
1) split the tests into a least two different test files
2) rewrite some of the templated tests (inducing long code generation times at compilation) to be runtime-parametric instead (for example using RandomArrayGenerator or ArrayFromJSON)

Given that those tests have grown organically, step 2 above will probably be slightly cumbersome... One needs to understand what each test checks for and rewrite it while keeping its intent.

cc [~kou] [~benpharkins]


> [C++] arrow_reader_writer_test.cc slow to compile
> -------------------------------------------------
>
>                 Key: ARROW-13221
>                 URL: https://issues.apache.org/jira/browse/ARROW-13221
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: C++
>            Reporter: Antoine Pitrou
>            Priority: Minor
>
> As soon as some optimizations are enabled, {{src/parquet/arrow/arrow_reader_writer_test.cc}} becomes extremely slow to compile (more than one minute just for itself). This is perceivable on e.g. the {{conda-cpp-valgrind}} build where we add {{-Og}} to the gcc flags in order to make the tests less slow under emulation.



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