Loop.ipynb

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  "name": "",
  "signature": "sha256:5e0db451a22d1877147750b3d5fad4d0d094cd5921d48387d5ea3d64ca8f0d19"
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  {
   "cells": [
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "def func(i):\n",
      "    return i\n",
      "\n",
      "def run_loop(n):\n",
      "    for i in range(n, -1, -1):\n",
      "        if func(i) == 0:\n",
      "            break"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 1
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# cpython3\n",
      "%timeit run_loop(10)\n",
      "%timeit run_loop(100)\n",
      "%timeit run_loop(1000)\n",
      "%timeit run_loop(10000)\n",
      "%timeit run_loop(100000)\n",
      "%timeit run_loop(1000000)\n",
      "%timeit run_loop(10000000)\n",
      "%timeit run_loop(100000000)\n",
      "%timeit run_loop(1000000000)"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "100000 loops, best of 3: 2.08 \u00b5s per loop\n",
        "100000 loops, best of 3: 14.5 \u00b5s per loop"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n",
        "10000 loops, best of 3: 155 \u00b5s per loop"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n",
        "1000 loops, best of 3: 1.58 ms per loop"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n",
        "100 loops, best of 3: 15.9 ms per loop"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n",
        "10 loops, best of 3: 158 ms per loop"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n",
        "1 loops, best of 3: 1.59 s per loop"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n",
        "1 loops, best of 3: 15.7 s per loop"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n",
        "1 loops, best of 3: 2min 35s per loop"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n"
       ]
      }
     ],
     "prompt_number": 2
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# pypy\n",
      "%timeit run_loop(10)\n",
      "%timeit run_loop(100)\n",
      "%timeit run_loop(1000)\n",
      "%timeit run_loop(10000)\n",
      "%timeit run_loop(100000)\n",
      "%timeit run_loop(1000000)\n",
      "%timeit run_loop(10000000)\n",
      "%timeit run_loop(100000000)\n",
      "%timeit run_loop(1000000000)"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "100000000 loops, best of 3: 2.37 ns per loop\n",
        "100000000 loops, best of 3: 2.39 ns per loop"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n",
        "100000000 loops, best of 3: 2.44 ns per loop"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n",
        "100000000 loops, best of 3: 2.3 ns per loop"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n",
        "100000000 loops, best of 3: 2.42 ns per loop"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n",
        "100000000 loops, best of 3: 2.42 ns per loop"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n",
        "100000000 loops, best of 3: 2.45 ns per loop"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n",
        "100000000 loops, best of 3: 2.44 ns per loop"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n",
        "100000000 loops, best of 3: 2.36 ns per loop"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n"
       ]
      }
     ],
     "prompt_number": 3
    }
   ],
   "metadata": {}
  }
 ]
}