I am not sure if there are any recent benchmarks, but if you Google "Jython Performance" then you should come up with a number of benchmarks from the past.  Perhaps this is one of the most recent:


Josh Juneau

On Fri, Oct 5, 2012 at 4:29 AM, Monmohan Singh <> wrote:
Are there any performance benchmarks available for jython vs. java and cpython?
We are starting a new project where I would like to advocate use of jython for succinctness but would like to understand performance implications, if any.
Appreciate any response.

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