Message 59872 - Python tracker

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Author	pitrou
Recipients	bob.ippolito, loewis, nnorwitz, pitrou
Date	2008-01-13.23:23:47
SpamBayes Score	0.040314063
Marked as misclassified	No
Message-id	<1200266629.76.0.419496031485.issue1479611@psf.upfronthosting.co.za>
In-reply-to

Content
Here is a patch applicable for SVN trunk. However, as Bob I have mixed results on this. For example, functions with variable parameter count have become slower: # With patch $ ./python -m timeit -s "def f(x): pass" 'for x in xrange(10000): f(1)' 100 loops, best of 3: 4.92 msec per loop $ ./python -m timeit -s "def f(x): pass" 'for x in xrange(10000): f()' 100 loops, best of 3: 4.07 msec per loop $ ./python -m timeit -s "def f(x): pass" 'for x in xrange(10000): f(1,2)' 100 loops, best of 3: 5.04 msec per loop # Without patch $ ./python-orig -m timeit -s "def f(x): pass" 'for x in xrange(10000): f(1)' 100 loops, best of 3: 4.22 msec per loop $ ./python-orig -m timeit -s "def f(x): pass" 'for x in xrange(10000): f()' 100 loops, best of 3: 3.5 msec per loop $ ./python-orig -m timeit -s "def f(x): pass" 'for x in xrange(10000): f(1,2)' 100 loops, best of 3: 4.46 msec per loop

Here is a patch applicable for SVN trunk.
However, as Bob I have mixed results on this. For example, functions
with variable parameter count have become slower:

# With patch
$ ./python -m timeit -s "def f(*x): pass" 'for x in xrange(10000): f(1)'
100 loops, best of 3: 4.92 msec per loop
$ ./python -m timeit -s "def f(*x): pass" 'for x in xrange(10000): f()'
100 loops, best of 3: 4.07 msec per loop
$ ./python -m timeit -s "def f(*x): pass" 'for x in xrange(10000): f(1,2)'
100 loops, best of 3: 5.04 msec per loop

# Without patch
$ ./python-orig -m timeit -s "def f(*x): pass" 'for x in xrange(10000):
f(1)'
100 loops, best of 3: 4.22 msec per loop
$ ./python-orig -m timeit -s "def f(*x): pass" 'for x in xrange(10000): f()'
100 loops, best of 3: 3.5 msec per loop
$ ./python-orig -m timeit -s "def f(*x): pass" 'for x in xrange(10000):
f(1,2)'
100 loops, best of 3: 4.46 msec per loop

History
Date	User	Action	Args
2008-01-13 23:23:50	pitrou	set	spambayes_score: 0.0403141 -> 0.040314063 recipients: + pitrou, loewis, nnorwitz, bob.ippolito
2008-01-13 23:23:49	pitrou	set	spambayes_score: 0.0403141 -> 0.0403141 messageid: <1200266629.76.0.419496031485.issue1479611@psf.upfronthosting.co.za>
2008-01-13 23:23:48	pitrou	link	issue1479611 messages
2008-01-13 23:23:48	pitrou	create