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https://issues.apache.org/jira/browse/OAK-924?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13716232#comment-13716232
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Jukka Zitting commented on OAK-924:
-----------------------------------
Ooh, table! Nice. :-)
In revision 1505898 I added a bit simpler {{NamespaceTest}} benchmark that
highlights the issue I've seen at least with XML imports:
{noformat}
# NamespaceTest min 10% 50% 90% max N
Jackrabbit 6 6 6 7 15 9426
Oak-Default 44 44 45 46 132 1328
Oak-Tar 100 102 102 103 216 584
{noformat}
> Optimize namespace lookups
> --------------------------
>
> Key: OAK-924
> URL: https://issues.apache.org/jira/browse/OAK-924
> Project: Jackrabbit Oak
> Issue Type: Sub-task
> Components: core, jcr
> Reporter: Jukka Zitting
> Assignee: Jukka Zitting
> Attachments: OAK-924-bench.patch
>
>
> The current namespace handling code does a lot of repetitive work, which
> shows up in hotspots like XML imports and Sling's namespace mapping code.
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