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https://issues.apache.org/jira/browse/HIVE-7271?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14040358#comment-14040358
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Gunther Hagleitner commented on HIVE-7271:
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Also - checked some build/test times in the precommit q. seems like the cli
portion of the tests went from 25 hrs to more like 8 hrs. Although run in
parallel it seems to not hit that hard - something else the critical path?
> Speed up unit tests
> -------------------
>
> Key: HIVE-7271
> URL: https://issues.apache.org/jira/browse/HIVE-7271
> Project: Hive
> Issue Type: Bug
> Reporter: Gunther Hagleitner
> Assignee: Gunther Hagleitner
> Attachments: HIVE-7271.1.patch, HIVE-7271.2.patch, HIVE-7271.3.patch
>
>
> Did some experiments to see if there's a way to speed up unit tests.
> TestCliDriver seemed to take a lot of time just spinning up/tearing down
> JVMs. I was also curious to see if running everything on a ram disk would
> help.
> Results (I ran tests up to authorization_2):
> - Current setup: 40 minutes
> - Single JVM (not using child JVM to run all queries): 8 minutes
> - Single JVM + ram disk: 7 minutes
> So the ram disk didn't help that much. But running tests in single JVM seems
> worthwhile doing.
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