New submission from mikefc <[email protected]>:
OSX. 4 core i5. recent 'nightly' version of pypy
Time to run the code for cpython and pypy.
map multiprocessing.map
CPython 28.9 12.6
pypy 28.1 23.9
#-------------------------------------------------------
# code code code code code
#-------------------------------------------------------
import hashlib
import datetime
import multiprocessing
def f(i):
return hashlib.md5("hello %i" % i).hexdigest()
p = multiprocessing.Pool(4)
for mapf in (map, p.map):
start = datetime.datetime.now()
mapf(f, xrange(2**23))
print datetime.datetime.now() - start
----------
messages: 5932
nosy: mikefc, pypy-issue
priority: performance bug
status: unread
title: multiprocessing slower than cpython
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PyPy bug tracker <[email protected]>
<https://bugs.pypy.org/issue1538>
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