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From "Esteban Franqueiro (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JCR-1705) Reduce memory usage of transient nodes
Date Mon, 04 Aug 2008 15:12:44 GMT

    [ https://issues.apache.org/jira/browse/JCR-1705?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12619540#action_12619540
] 

Esteban Franqueiro commented on JCR-1705:
-----------------------------------------

+1
I remember a few discussions about performance/memory consumption. We should get into that
sometime, perhaps pre-1.5?
Also, like Jukka said, maybe we should try to clean up NodeState sometime :)
Regards,

> Reduce memory usage of transient nodes
> --------------------------------------
>
>                 Key: JCR-1705
>                 URL: https://issues.apache.org/jira/browse/JCR-1705
>             Project: Jackrabbit
>          Issue Type: Improvement
>          Components: jackrabbit-core
>            Reporter: Marcel Reutegger
>            Priority: Minor
>         Attachments: JCR-1705.patch
>
>
> When adding lots of transient nodes, most of them don't have child nodes because they
are leafs. The attached patch initializes NodeState.childNodeEntries with an unmodifiable
empty ChildNodeEntries instance and turns it into a modifiable one only when needed.
> Running a test with 100k nodes (10 children per node) the memory consumption for child
node entries drops from 42MB to 12MB with this patch.

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