Serhiy Storchaka added the comment:

This is because instantiating new Arena is much slower in Python 3.

./python -m timeit -r1 -s 'from multiprocessing.heap import Arena' 
'Arena(2**26)'

Python 3.7: 1 loop, best of 1: 1.18 sec per loop
Python 2.7: 100000 loops, best of 1: 9.19 usec per loop

May be the regression was introduced by issue8713.

----------
nosy: +davin, sbt, serhiy.storchaka

_______________________________________
Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue30919>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

Reply via email to