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https://issues.apache.org/jira/browse/ARROW-2071?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16351738#comment-16351738
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ASF GitHub Bot commented on ARROW-2071:
---------------------------------------

xhochy commented on issue #1550: ARROW-2071: [Python] Lighten serialization 
tests
URL: https://github.com/apache/arrow/pull/1550#issuecomment-362898477
 
 
   The offending job is compiled in debug mode and is run inside of valgrind. 
This is really costly, we should probably think of if we should run all Python 
versions inside of valgrind or simply activate ASAN on the Linux LLVM build.

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> [Python] Reduce runtime of builds in Travis CI
> ----------------------------------------------
>
>                 Key: ARROW-2071
>                 URL: https://issues.apache.org/jira/browse/ARROW-2071
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Python
>            Reporter: Wes McKinney
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 0.9.0
>
>
> For some reason, recently each Python build has been taking about 15 minutes 
> to run. I speculate this is due to VM thrashing caused by reduced resources 
> on the Travis CI workers, related to the problem I fixed in ARROW-2062.
> We should experiment, but it seems like perhaps this can be fixed either by:
> * Reducing the size of the Plasma store on Travis CI
> * Disabling valgrind in Plasma tests
> The slowness could be caused by something else, though, so we should 
> investigate (and have pytest report slow tests in the logs)



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