[jboss-user] [JBoss Microcontainer Development] - JBoss Reflect Performance Javassist vs Introspection

[Kabir Khan]

Kabir Khan [http://community.jboss.org/people/kabir.khan%40jboss.com] replied to the discussion

"JBoss Reflect Performance Javassist vs Introspection"

To view the discussion, visit: http://community.jboss.org/message/538027#538027

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> Kabir Khan wrote:
> 
> Here are the times:
> > 
> > ========== IntrospectionTypeInfoFactory
> > 
> > A - Creating 100 ClassInfos 141ms
> > 
> > B - Getting 100 fields and methods for 100 classes 50 times 1446ms
> > 
> > C - First accessing 100 fields and methods for 100 classes 50 times 116ms
> > 
> > D - Accessing 100 fields and methods for 100 classes 50 times 3545ms
> > 
> > Done!
> >  
> > 
> >  
> > 
> > ========== JavassistTypeInfoFactory
> > 
> > A - Creating 100 ClassInfos 164ms
> > 
> > B - Getting 100 fields and methods for 100 classes 50 times 820ms
> > 
> > C - First accessing 100 fields and methods for 100 classes 50 times 4557ms
> > 
> > D - Accessing 100 fields and methods for 100 classes 50 times 272ms
> > 
> > Done!
> > 
The output here is a bit misleading. C only accesses the members once, not 50 in order to determine the overhead of creating the JavassistMethod/-Constructor/-Field classes. I've updated the benchmark in svn to read:
> 
> ========== IntrospectionTypeInfoFactory
> A - Creating 100 ClassInfos 141ms
> B - Getting 100 fields and methods for 100 classes 50 times 1446ms
> C - First accessing 100 fields and methods for 100 classes 116ms
> D - Accessing 100 fields and methods for 100 classes 50 times 3545ms
> Done!
>  
>  
> ========== JavassistTypeInfoFactory
> A - Creating 100 ClassInfos 164ms
> B - Getting 100 fields and methods for 100 classes 50 times 820ms
> C - First accessing 100 fields and methods for 100 classes 4557ms
> D - Accessing 100 fields and methods for 100 classes 50 times 272ms
> Done!
> 


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