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https://issues.apache.org/jira/browse/SPARK-3115?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14102142#comment-14102142
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Mridul Muralidharan commented on SPARK-3115:
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I had a tab open with pretty much exact same bug comments ready to be filed :-)
> Improve task broadcast latency for small tasks
> ----------------------------------------------
>
> Key: SPARK-3115
> URL: https://issues.apache.org/jira/browse/SPARK-3115
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 1.1.0
> Reporter: Shivaram Venkataraman
> Assignee: Reynold Xin
>
> Broadcasting the task information helps reduce the amount of data transferred
> for large tasks. However we've seen that this adds more latency for small
> tasks. It'll be great to profile and fix this.
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