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https://issues.apache.org/jira/browse/UIMA-2385?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13250219#comment-13250219
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Adam Lally commented on UIMA-2385:
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Well, I may have gotten some bad data from the profiler (yourkit), since
deserialization time appears to be the same after my "fix". :(
> Improve XmiCasDeserializer performance by using low-level CAS APIs to create
> arrays
> -----------------------------------------------------------------------------------
>
> Key: UIMA-2385
> URL: https://issues.apache.org/jira/browse/UIMA-2385
> Project: UIMA
> Issue Type: Improvement
> Components: Core Java Framework
> Affects Versions: 2.4.0SDK
> Reporter: Adam Lally
> Assignee: Adam Lally
>
> I profiled an expensive CAS deserialization and found that 46% of the time
> was in CASImpl.ll_getFSForRef (the method that creates a FeatureStructure
> Java object for a CAS FS). All those calls were coming from deserializing
> arrays (of which this particular CAS has many).
> It is unnecessary to create FeatureStructure Java objects here. For
> non-array FSs, XmiCasDeserializer uses low-level CAS APIs in order to avoid
> this overhead. But for arrays, it currently does not use the low-level APIs.
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