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https://issues.apache.org/jira/browse/TINKERPOP-1404?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15529178#comment-15529178
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stephen mallette commented on TINKERPOP-1404:
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The PR is essentially the way to trigger review. If you don't want a VOTE for
some reason and just want review of diffs from certain folks, you can say so in
the PR description.
> Path/label optimization
> -----------------------
>
> Key: TINKERPOP-1404
> URL: https://issues.apache.org/jira/browse/TINKERPOP-1404
> Project: TinkerPop
> Issue Type: Improvement
> Components: process
> Affects Versions: 3.2.1
> Reporter: pieter martin
> Assignee: pieter martin
> Labels: performance
>
> Currently path queries do a lot of label collection copying. This has a
> significant impact on performance.
> As the labels are known and set on the traverser when {{Traverser.split(r,
> step)}} is called there is no need to call {{Traverser.addLabels}} again in
> {{AbstractStep}}
> Also seeing as {{AbstractStep.getLabels()}} returns an {{UnmodifyableSet}}
> the step's labels can be used directly in the traverser. There is no need to
> make a copy of it.
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