[issue12775] immense performance problems related to the garbage collector
report at bugs.python.org
Thu Aug 18 18:29:15 CEST 2011
Ezio Melotti <ezio.melotti at gmail.com> added the comment:
IIRC the C acceleration for json were added in 2.7/3.2, and are used automatically when you import json. In the previous releases the json module was implemented in pure Python. That explains why it's much slower on Python 2.5/6.
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