[issue1479611] speed up function calls

[Christian Heimes]

Changes by Christian Heimes:


--
type:  -> rfe
versions: +Python 2.6 -Python 2.5

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[issue1479611] speed up function calls

[Antoine Pitrou]

Antoine Pitrou added the comment:

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(1): f(1)'
100 loops, best of 3: 4.92 msec per loop
$ ./python -m timeit -s "def f(*x): pass" 'for x in xrange(1): f()'
100 loops, best of 3: 4.07 msec per loop
$ ./python -m timeit -s "def f(*x): pass" 'for x in xrange(1): 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(1):
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(1): f()'
100 loops, best of 3: 3.5 msec per loop
$ ./python-orig -m timeit -s "def f(*x): pass" 'for x in xrange(1):
f(1,2)'
100 loops, best of 3: 4.46 msec per loop

--
nosy: +pitrou
Added file: http://bugs.python.org/file9154/funcall.patch

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[issue1479611] speed up function calls

[Mark Lawrence]

Mark Lawrence  added the comment:

I'm not sure if this is worth pursuing given the way performance is so often 
governed by networking and/or IO issues today, bearing in mind comments like 
msg50163 and msg59872.  I'd certainly like to see more comments from core 
developers.  Could someone in the know please put them on the nosy list.

--
nosy: +BreamoreBoy

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[issue1479611] speed up function calls

[Alexander Belopolsky]

Alexander Belopolsky  added the comment:

I think Raymond might be interested.  Since this is not a bug fix, it can only 
be considered for 3.x.

--
nosy: +belopolsky, rhettinger
versions: +Python 3.2 -Python 2.7

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[issue1479611] speed up function calls

[Terry J. Reedy]

Changes by Terry J. Reedy :


--
type: feature request -> performance

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[issue1479611] speed up function calls

[Raymond Hettinger]

Changes by Raymond Hettinger :


--
assignee:  -> rhettinger
priority: normal -> low

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[issue1479611] speed up function calls

[Raymond Hettinger]

Changes by Raymond Hettinger :


--
assignee: rhettinger -> 
versions: +Python 3.3 -Python 3.2

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[issue1479611] speed up function calls

[Pas]

Changes by Pas :


--
nosy: +pas

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[issue1479611] speed up function calls

[Antoine Pitrou]

Antoine Pitrou  added the comment:

Closing as terribly outdated (and not very promising).

--
resolution:  -> out of date
status: open -> closed

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[issue1479611] speed up function calls

[Ezio Melotti]

Changes by Ezio Melotti :


--
keywords: +needs review
stage:  -> patch review
versions: +Python 2.7 -Python 2.6

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[issue1479611] speed up function calls

[Collin Winter]

Changes by Collin Winter :


--
nosy: +collinwinter, jyasskin

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