[jboss-dev-forums] [Design of EJB 3.0] - EJBTHREE-1800 Current status on performance improvement

[jaikiran]

The latest profiler snapshot against AS 5_x branch (have additionally included fixes of JBCL-100 and JBCL-101) have been attached to https://jira.jboss.org/jira/browse/EJBTHREE-1800. Right now, the majority of the time is spent in AOP which includes:

1) Interceptor chain creation (/reinitialization)
2) Looking for annotations on methods through AOP (ex: transaction attributes per method)
3) The profiler snapshot shows hotspots on org.jboss.ejb3.metadata.plugins.loader.BridgedMetadataLocader (.retrieveAnnotation)
4) We also found an issue in AOP where if a interceptor factory is marked for PER_CLASS_JOINPOINT, it gets created on every method join point. I'll create a separate thread for more details.
 
I'll continue looking at these performance issues. However, if anyone has more inputs (after looking at that snapshot) please free to suggest any improvements.



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