New issue 1871: 10x slower than CPython under coverage https://bitbucket.org/pypy/pypy/issue/1871/10x-slower-than-cpython-under-cov... Alex Gaynor: To reproduce: ``` import coverage def g(): pass def f(): g() g() g() g() def main(): cov = coverage.coverage() cov.start() for i in xrange(1000000): f() cov.stop() if __name__ == "__main__": main() ```