[pypy-issue] Issue #2190: Possible performance regression from 2.6.1 to 4.0.0 (pypy/pypy)
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Tue Nov 17 04:06:49 EST 2015
New issue 2190: Possible performance regression from 2.6.1 to 4.0.0
I've done some measurements comparing JSON and MsgPack
MsgPack deserialization seems significantly slower (>30%), e.g.
PyPy 4.0.0: 23642935 objs/sec
PyPy 2.6.1: 32081015 objs/sec
Note: the MsgPack library used (https://github.com/msgpack/msgpack-python) runs pure Python code when on PyPy and uses PyPy's string builder (https://github.com/msgpack/msgpack-python/blob/master/msgpack/fallback.py).
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