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https://issues.apache.org/jira/browse/HIVE-5194?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benjamin Jakobus updated HIVE-5194:
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Assignee: Benjamin Jakobus
> Replace vectors with array lists (issue 6)
> ------------------------------------------
>
> Key: HIVE-5194
> URL: https://issues.apache.org/jira/browse/HIVE-5194
> Project: Hive
> Issue Type: Sub-task
> Reporter: Benjamin Jakobus
> Assignee: Benjamin Jakobus
> Fix For: 0.12.0
>
>
> Replace vectors with array lists- Vectors synchronized, making them slower
> than array lists. Therefore using vectors in circumstances where
> thread-safety is not an issue will decrease performance. I wrote some tests
> that added 9,999,999 integers to a vector: this took 2367 milliseconds.
> Adding them to an array list on the other hand took only 934 milliseconds.
> 6 instances of this optimization can be applied.
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