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[jira] [Commented] (UIMA-2385) Improve XmiCasDeserializer performance by using low-level CAS APIs to create arrays


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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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Gmane