Reduce excessive synch lock contention caused by calss to ll_isValidTypeCode
that are not needed
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Key: UIMA-500
URL: https://issues.apache.org/jira/browse/UIMA-500
Project: UIMA
Issue Type: Improvement
Affects Versions: 2.1
Reporter: Marshall Schor
Assignee: Marshall Schor
Fix For: 2.2
User reports slowdown as the number of threads are increased; traced to lock
contention in Vector.get() method; call trace is:
XmiCasSerializer$XmiCasDocSerializer.<many places>
CASImpl.ll_getTypeClass(int)
TypeSystemImpl.subsumes(int, int)
TypeSystemImpl.ll_subsumes(int, int)
TypeSystemImpl.ll_isArrayType(int)
TypeSystemImpl.ll_isValidTypeCode(int) <<< Not needed
SymbolTable.getSymbol(int)
Vector.get(int)
The callers of ll_isValidTypeCode include this caller and another
(ll_getStringSet), where the call can be omitted without affecting the returned
value.
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