Python list copy benchmark

bench_list_copy.py

from benchmarker import Benchmarker

items = ['foo', 'bar', 'baz', 'hoge']

import copy

with Benchmarker(width=40, loop=100000) as bm:
    for _ in bm('list'):
        x = list(items)
    for _ in bm('slice'):
        x = items[:]
    for _ in bm('copy'):
        x = copy.copy(items)
    for _ in bm('deep copy'):
        x = copy.deepcopy(items)

"""
## benchmarker:       release 3.0.1 (for python)
## python platform:   darwin [GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.2.79)]
## python version:    2.7.6
## python executable: /Users/nekoya/.pyenv/versions/py27/bin/python

##                                           user       sys     total      real
list                                       0.0700    0.0000    0.0700    0.0716
slice                                      0.0400    0.0000    0.0400    0.0372
copy                                       0.1400    0.0000    0.1400    0.1382
deep copy                                  1.2500    0.0100    1.2600    1.2542

## Ranking                                   real
slice                                      0.0372 (100.0%) *************************
list                                       0.0716 ( 51.9%) *************
copy                                       0.1382 ( 26.9%) *******
deep copy                                  1.2542 (  3.0%) *

## Ratio Matrix                              real    [01]    [02]    [03]    [04]
[01] slice                                 0.0372  100.0%  192.6%  371.5% 3371.3%
[02] list                                  0.0716   51.9%  100.0%  192.9% 1750.8%
[03] copy                                  0.1382   26.9%   51.8%  100.0%  907.6%
[04] deep copy                             1.2542    3.0%    5.7%   11.0%  100.0%
"""