Improve XmiCasDeserializer performance by using low-level CAS APIs to create
arrays
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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
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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