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Marcel Reutegger commented on OAK-8141:
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Just to make sure there is no misunderstanding, I was just talking about PathComparator. The
impact on overall repository performance is probably not measurable. The PathComparator is
only used in the DocumentNodeStore background update thread.
> Replace String path with custom data type
> -----------------------------------------
>
> Key: OAK-8141
> URL: https://issues.apache.org/jira/browse/OAK-8141
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: documentmk
> Reporter: Marcel Reutegger
> Assignee: Marcel Reutegger
> Priority: Major
> Fix For: 1.12.0
>
> Attachments: OAK-8141.patch
>
>
> DocumentNodeState objects and other related data is currently identified with a String
path in the various caches in the DocumentNodeStore. Read benchmarks like GetDeepNodeTest
that only read data from memory are significantly slower on a DocumentNodeStore compared to
a SegmentNodeStore. In these kind of tests the DocumentNodeStore is usually busy with String
operations like constructing the path for a child node or calculating the hash code for a
lookup in a cache.
> This issue is about a potential improvement that replaces the use of a plain String for
the path of a DocumentNodeState and use a custom Path type instead.
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