[Jython-users] Q: Optimizing Jython/Java code

[cuddihyd <cud...@gm...>]

Hi Everyone -- I'm about to embark on optimizing a piece of software written
in Jython 2.5.0 and Java 1.6.  I am not terribly experienced optimizing
Jython or Java code so it's taking me some time to find my way.


My immediate questions to the Jython user community are as follows:

1) What are the best tools for profiling Jython code? i.e. For what have you
all found the best success pinpointing your performance bottlenecks? Any
suggestions or pointers to good articles on Jython optimization would be
greatly appreciated (I haven't found a whole lot so far.)

2) In general I'm finding my Jython code to run an order of magnitude more
slowly than my Java code. Should I be surprised?

3) I'm not explicitly using org.python.core.ConcurrentMap (not to be
confused with java.util.concurrent.ConcurrentMap?) in my code anywhere,
however jvisualvm's profiler indicates that I spend most of my time in
ConcurrentMap.  Why would this be? 


Any hints greatly appreciated!
Thanks.
-Dave

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