[pypy-issue] [issue814] Appending string is slower than cpython

[Ismael]

New submission from Ismael <ismaelgfk at gmail.com>:

Code:

from time import time

ini = time()
s = ""
for i in xrange(100000):
    s += "23"
fin = time()
print "AppendStr: ", fin-ini

Timings:

Python 2.6:
ismael at chaos:~/workspace/testsum/src$ python stringtest.py 
AppendStr:  0.0206191539764

PyPy 1.5:
ismael at chaos:~/workspace/testsum/src$ ~/pypy/bin/pypy stringtest.py 
AppendStr:  5.54550814629

PyPy trunk:
ismael at chaos:~/workspace/testsum/src$
~/pypy/pypylatest/pypy-c-jit-46033-811906ece2d8-linux64/bin/pypy stringtest.py 
AppendStr:  5.64269804955

----------
messages: 2882
nosy: Ismael, pypy-issue
priority: bug
status: unread
title: Appending string is slower than cpython

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PyPy bug tracker <tracker at bugs.pypy.org>
<https://bugs.pypy.org/issue814>
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