On 04.04.17 01:21, Victor Stinner wrote:
In benchmarks slower in Python 3.7 compared to 2.7 at
https://speed.python.org/comparison/ I found pickle_pure_python and
unpickle_pure_python. These benchmarks test the pure Python
implementation of the pickle protocol.
I don't see the point of testing the pure Python implementation, since
the C accelerator (_pickle) is always used by default in Python 3. I
propose to remove this benchmark. What do you think?
I consider it as a benchmark of Python interpreter itself. And indeed,
they show a progress from 3.5 to 3.7. A slow regression in unpickling in
3.5 may be related to adding more strong validation (but may be not
related).
Unfortunately the Python code is different in different versions. Maybe
write a single cross-version pickle implementation and use it with these
benchmarks?
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