Comparing the C FFI overhead in various programming languages

Re:Comparing the C FFI overhead in various programming langu... by eesmith on Saturday May 26, 2018 @07:24AM (#17161448)

I'm a Python programmer, so what I'm most interested in are Python and PyPy. Both with ctypes and with the cffi module.

[ Parent | on HN ]

Re:Comparing the C FFI overhead in various programming langu... by mlthoughts2018 on Saturday May 26, 2018 @09:55PM (#17165099)

Here looks like a GitHub gist you could use to do it for cffi vs Cython in Python, and PyPy.

[ Parent | on HN ]

Re:Comparing the C FFI overhead in various programming langu... by eesmith on Sunday May 27, 2018 @12:41AM (#17165464)

Thanks! Yes, it does.

[ Parent | on HN ]

Re:Comparing the C FFI overhead in various programming langu... by _pgmf on Saturday May 26, 2018 @09:57PM (#17165103)

ctypes is pretty slow in my experience. Cython is a nice alternative. Native speed and datatypes where you need them, plain old python anywhere else.

[ Parent | on HN ]

Re:Comparing the C FFI overhead in various programming langu... by eesmith on Sunday May 27, 2018 @12:40AM (#17165459)

Yes, my experience with CPython is that ctypes is slower than writing (or generating, as is the case with Cython) the Python/C extension.

However, one advantage with ctypes is that it can work with other Python implementations, like PyPy.

[ Parent | on HN ]