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https://issues.apache.org/jira/browse/APEXMALHAR-2352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15691426#comment-15691426
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bright chen commented on APEXMALHAR-2352:
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I am not very sure about the reason.
Maybe in equals, ImmutablePair use instanceof which need to compare the class
hierarchy while com.datatorrent.common.util.Pair just use getClass()
> Improve performance of keyed windowed operators
> -----------------------------------------------
>
> Key: APEXMALHAR-2352
> URL: https://issues.apache.org/jira/browse/APEXMALHAR-2352
> Project: Apache Apex Malhar
> Issue Type: Task
> Reporter: bright chen
> Assignee: bright chen
>
> refer to https://issues.apache.org/jira/browse/APEXMALHAR-2339 to the keyed
> windowed operator benchmark
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