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https://issues.apache.org/jira/browse/SPARK-16526?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen resolved SPARK-16526.
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Resolution: Won't Fix
> Benchmarking Performance for Fast HashMap Implementations and Set Knobs
> -----------------------------------------------------------------------
>
> Key: SPARK-16526
> URL: https://issues.apache.org/jira/browse/SPARK-16526
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Qifan Pu
>
> Add benchmark results for two fast hashmap implementations. Set the rule on
> how to pick between the two (or directly fallback to 2nd level hashmap) based
> on benchmark results.
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