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https://issues.apache.org/jira/browse/PDFBOX-6268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18116209#comment-18116209
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Tim Allison commented on PDFBOX-6268:
-------------------------------------
This needs your knowledge and context. I’m happy to iterate based on your
feedback. If it is more efficient for you to take it from here, go forth!
Let me know how I can help without getting in your way.
> Avoid rebuilding key cache when possible
> ----------------------------------------
>
> Key: PDFBOX-6268
> URL: https://issues.apache.org/jira/browse/PDFBOX-6268
> Project: PDFBox
> Issue Type: Task
> Components: Parsing
> Reporter: Tim Allison
> Assignee: Andreas Lehmkühler
> Priority: Minor
> Attachments: G7BO7PNCCREVF2BCY5YSYOPYDLMBYASY.pdf,
> RFFQRH5P3P4YLUL5MWWZIPDQRKAPES2H.pdf
>
>
> Over on Tika, we found that our {{COSDocument.getObjectsByType(FILESPEC)}}
> was really expensive on a couple of PDFs.
> The issue was that every object stream parse rebuilds the cache from scratch:
> xref entries × object streams map insertions.
> With incoming PR, we could get >600s -> ~4 seconds or less.
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