[
https://issues.apache.org/jira/browse/FLINK-15249?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16998122#comment-16998122
]
Zhu Zhu commented on FLINK-15249:
---------------------------------
Thanks for the reply [~nppoly]. According to the result, seems that it is not
the expected O(N) -> O(1) improvement.
Did you check why it becomes faster? Does it apply to all kinds of topologies?
> Improve PipelinedRegions calculation with Union Set
> ---------------------------------------------------
>
> Key: FLINK-15249
> URL: https://issues.apache.org/jira/browse/FLINK-15249
> Project: Flink
> Issue Type: Improvement
> Reporter: Chongchen Chen
> Priority: Major
> Labels: pull-request-available
> Attachments: PipelinedRegionComputeUtil.diff
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Union Set's Merge Set cost is O(1). current implementation is O(N). the
> attachment is patch.
> [Disjoint Set Data
> Structure|[https://en.wikipedia.org/wiki/Disjoint-set_data_structure]]
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
