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https://issues.apache.org/jira/browse/TIKA-3979?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17695895#comment-17695895
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Alexey Pismenskiy commented on TIKA-3979:
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Lots of mem allocations and CPU time around BitSet.valueOf() before the fix,
see attached screenshots
> OneNoteParser - Improve performance for deserialization
> -------------------------------------------------------
>
> Key: TIKA-3979
> URL: https://issues.apache.org/jira/browse/TIKA-3979
> Project: Tika
> Issue Type: Improvement
> Components: parser
> Affects Versions: 2.7.0
> Reporter: David Xie
> Priority: Major
> Attachments: cpu.png, image-2023-02-20-14-42-10-590.png,
> image-2023-02-25-12-01-40-311.png, memory.png
>
>
> We noticed some performance issues specific to parsing OneNote files. Our cpu
> profiler reports that the parser spends a lot of time on deserializing byte
> arrays (image included below)
> !image-2023-02-20-14-42-10-590.png!
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