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https://issues.apache.org/jira/browse/FELIX-3447?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13248391#comment-13248391
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Guillaume Nodet commented on FELIX-3447:
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I did use Youkit Profiler to find out this possible optimization. I don't
recall exactly, but that was the main thing that could easily be improved
without changing the algorithm.
Another one was case-insensitive searches but i couldn't find any good solution
for that.
> Optimize read only collections by using a specific class and not a wrapper
> which is slower
> ------------------------------------------------------------------------------------------
>
> Key: FELIX-3447
> URL: https://issues.apache.org/jira/browse/FELIX-3447
> Project: Felix
> Issue Type: Improvement
> Components: Framework
> Affects Versions: framework-4.0.2
> Reporter: Guillaume Nodet
> Priority: Minor
> Fix For: framework-4.2.0
>
> Attachments: FELIX-3447.patch
>
>
> The unmodifiable collection wrappers are .. wrappers and as such add a
> slight overhead.
> In the case of felix, the resolution process does use a lot of those maps for
> bundle capabilities and requirements and the overhead tends to become non
> negligible.
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