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https://issues.apache.org/jira/browse/SPARK-4548?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Patrick Wendell updated SPARK-4548:
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Summary: Python broadcast perf regression from Spark 1.1 (was: Python
broadcast is very slow)
> Python broadcast perf regression from Spark 1.1
> -----------------------------------------------
>
> Key: SPARK-4548
> URL: https://issues.apache.org/jira/browse/SPARK-4548
> Project: Spark
> Issue Type: Bug
> Components: PySpark
> Affects Versions: 1.2.0
> Reporter: Davies Liu
> Priority: Blocker
>
> Python broadcast in 1.2 is much slower than 1.1:
> In spark-perf tests:
> name 1.1 1.2 speedup
> python-broadcast-w-set 3.63 16.68 -78.23%
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