> - it appears PyPy performance improvements have begun to plateau [1] It does appear that Pypy's performance is reaching some asymptotic limit, but there's al

> - it appears PyPy performance improvements have begun to plateau [1] It does appear that Pypy's performance is reaching some asymptotic limit, but there's always new avenues to investigate. e.g. The STM branch of Pypy removes the GIL, and allows code to scale nicely across cores[1] [1]http://morepypy.blogspot.ch/2014/07/pypy-stm-first-interesting-release.html http://morepypy.blogspot.ch/2014/07/pypy-stm-first-interesti...