[jboss-dev-forums] [Design the new POJO MicroContainer] - Re: JBMDR-1; LRU cache impl

[adrian@jboss.org]

Marko did some investigation, due to the latest AS5 performance complaints on the jboss-dev ml.
Due to his results - AbstractMetaDataContext::getComponentMetaDataRetrieval is the biggest hotspot -, I've decided to add caching impls that are part of MDR already, and will work in bootstrap as well.

Marko's results on artificial app (100 EJBs, 100 @Local,  100 jsp):

  | 21%
  |  org.jboss.metadata.plugins.context.AbstractMetaDataContext.getComponentMetaDataRetrieval(Signature) (The method calls itself recursively)
  |   org.jboss.metadata.spi.retrieval.MetaDataRetrievalToMetaDataBridge.getComponentMetaData(Signature)
  |    org.jboss.aop.Advisor.hasJoinPointAnnotation(Class, Signature, String)
  |     org.jboss.aop.Advisor.hasAnnotation(long, Method, String, Class)
  |      org.jboss.aop.Advisor.hasAnnotation(Method, String)
  |       org.jboss.aop.pointcut.MethodMatcher.classMatchesAll(ClassExpression)
  | 
  |       org.jboss.aop.pointcut.MethodMatcher.matchesIdentifier(ASTMethod)
  |        org.jboss.aop.pointcut.MethodMatcher.matches(ASTMethod)
  | 

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