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timeit benchmarks

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rasbt 2014-04-13 19:22:30 -04:00
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commit 776792fec6
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123
.ipynb_checkpoints/timeit_test-checkpoint.ipynb Normal file
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@ -0,0 +1,123 @@
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"worksheets": [
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"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### String formatting - `.format()` vs. `%s`"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import timeit\n",
"\n",
"def test_format():\n",
" return ['{}'.format(i) for i in range(1000000)]\n",
"\n",
"def test_binaryop():\n",
" return ['%s' %i for i in range(1000000)]\n",
"\n",
"%timeit test_format()\n",
"%timeit test_binaryop()\n",
"\n",
"#print('{}: {}\\n{}: {}'.format('format()', format_res, '%s', binaryop_res))\n",
"\n",
"################################\n",
"# On my machine\n",
"################################\n",
"#\n",
"# Python 3.4.0\n",
"# MacOS X 10.9.2\n",
"# 2.5 GHz Intel Core i5\n",
"# 4 GB 1600 Mhz DDR3\n",
"#"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"1 loops, best of 3: 400 ms per loop\n",
"1 loops, best of 3: 241 ms per loop"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n"
]
}
],
"prompt_number": 3
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### String Reversing - `[::-1]` vs. `''.join(reversed())`"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"def reverse_join(my_str):\n",
" return ''.join(reversed(my_str))\n",
" \n",
"def reverse_slizing(my_str):\n",
" return my_str[::-1]\n",
"\n",
"\n",
"# Test to show that both work\n",
"a = reverse_join('abcd')\n",
"b = reverse_slizing('abcd')\n",
"assert(a == b and a == 'dcba')\n",
"\n",
"%timeit reverse_join('abcd')\n",
"%timeit reverse_slizing('abcd')\n",
"\n",
"# Python 3.4.0\n",
"# MacOS X 10.9.2\n",
"# 2.4 GHz Intel Core Duo\n",
"# 8 GB 1067 Mhz DDR3\n",
"#"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"1000000 loops, best of 3: 1.28 \u00b5s per loop\n",
"1000000 loops, best of 3: 337 ns per loop"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n"
]
}
],
"prompt_number": 13
}
],
"metadata": {}
}
]
}

6
README.md
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@ -2,3 +2,9 @@ python_reference
================ ================
Syntax examples for useful Python functions, methods, and modules Syntax examples for useful Python functions, methods, and modules
###Links to view the IPython Notebooks
- [Python benchmarks via `timeit`](http://nbviewer.ipython.org/github/rasbt/python_reference/blob/master/timeit_test.ipynb?create=1)

61
timeit_test.ipynb
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@ -1,12 +1,20 @@
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"### String formatting - `.format()` vs. `%s`"
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{ {
"cell_type": "code", "cell_type": "code",
"collapsed": false, "collapsed": false,
@ -32,7 +40,7 @@
"# MacOS X 10.9.2\n", "# MacOS X 10.9.2\n",
"# 2.5 GHz Intel Core i5\n", "# 2.5 GHz Intel Core i5\n",
"# 4 GB 1600 Mhz DDR3\n", "# 4 GB 1600 Mhz DDR3\n",
"#\n" "#"
], ],
"language": "python", "language": "python",
"metadata": {}, "metadata": {},
@ -55,13 +63,58 @@
], ],
"prompt_number": 3 "prompt_number": 3
}, },
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### String Reversing - `[::-1]` vs. `''.join(reversed())`"
]
},
{ {
"cell_type": "code", "cell_type": "code",
"collapsed": false, "collapsed": false,
"input": [], "input": [
"def reverse_join(my_str):\n",
" return ''.join(reversed(my_str))\n",
" \n",
"def reverse_slizing(my_str):\n",
" return my_str[::-1]\n",
"\n",
"\n",
"# Test to show that both work\n",
"a = reverse_join('abcd')\n",
"b = reverse_slizing('abcd')\n",
"assert(a == b and a == 'dcba')\n",
"\n",
"%timeit reverse_join('abcd')\n",
"%timeit reverse_slizing('abcd')\n",
"\n",
"# Python 3.4.0\n",
"# MacOS X 10.9.2\n",
"# 2.4 GHz Intel Core Duo\n",
"# 8 GB 1067 Mhz DDR3\n",
"#"
],
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"outputs": [] "outputs": [
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"output_type": "stream",
"stream": "stdout",
"text": [
"1000000 loops, best of 3: 1.28 \u00b5s per loop\n",
"1000000 loops, best of 3: 337 ns per loop"
]
},
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"output_type": "stream",
"stream": "stdout",
"text": [
"\n"
]
}
],
"prompt_number": 13
} }
], ],
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