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https://issues.apache.org/jira/browse/FLINK-30585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17704039#comment-17704039
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Piotr Nowojski commented on FLINK-30585:
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[~fanrui] do I understand this correctly? Is this just a performance
optimisation? Currently we are collecting flamegraphs from all threads and all
subtasks (across all TMs?), but then somewhere we are filtering out all but one
selected subtask?
> Improve flame graph performance at subtask level
> ------------------------------------------------
>
> Key: FLINK-30585
> URL: https://issues.apache.org/jira/browse/FLINK-30585
> Project: Flink
> Issue Type: Sub-task
> Reporter: Rui Fan
> Assignee: Rui Fan
> Priority: Major
>
> After FLINK-30185 , we can view the flame graph of subtask level. However, it
> always collects flame graphs for all subtasks.
> We should collect the flame graph of single subtask instead of all subtasks.
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