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https://issues.apache.org/jira/browse/OAK-284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13443218#comment-13443218
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Jukka Zitting commented on OAK-284:
-----------------------------------
+1 since the change is simple enough.
As a general rule I'd avoid complicating the code too much with optimizations
like this until we have a better performance/scalability benchmark to validate
the gains.
Note also that the internals of {{KernelNodeState}} will likely need to be
refactored fairly heavily to address the TODO about references to child node
states.
> Reduce memory usage of KernelNodeState
> --------------------------------------
>
> Key: OAK-284
> URL: https://issues.apache.org/jira/browse/OAK-284
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: core
> Reporter: Marcel Reutegger
> Priority: Minor
> Attachments: OAK-284.patch
>
>
> The KernelNodeState keeps child nodes in a LinkedHashMap, which is used even
> when there are no child nodes. The majority of nodes in a tree do not have
> child nodes. I suggest to optimize this case.
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