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https://issues.apache.org/jira/browse/ARROW-11968?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17302158#comment-17302158
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Yibo Cai commented on ARROW-11968:
----------------------------------

A quick test on my side. Looks 80% time is in sleeping.

{code:bash}
$ time release/arrow-threading-utility-test
....
real    0m5.389s
user    0m1.106s
sys     0m0.207s
{code}

> [C++] arrow-threading-utility-test takes a long time
> ----------------------------------------------------
>
>                 Key: ARROW-11968
>                 URL: https://issues.apache.org/jira/browse/ARROW-11968
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: C++
>            Reporter: Antoine Pitrou
>            Priority: Minor
>
> Nowadays arrow-threading-utility-test takes ~20 seconds (or much longer on 
> Valgrind). It would be good to reduce its runtime.



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