benchmarks.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "=> \"\u001b[32mSL.UserSignedUp       {\"userID\":10}\u001b[39m\""
     ]
    },
    {
     "data": {},
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "$encoded = 'SL.UserSignedUp       {\"userID\":10}';"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "=> \u001b[36mnull\u001b[39m"
     ]
    },
    {
     "data": {},
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "class Timer\n",
    "{\n",
    "    private $startTime;\n",
    "    \n",
    "    public function __construct()\n",
    "    {\n",
    "        $this->reset();\n",
    "    }\n",
    "    public function reset()\n",
    "    {\n",
    "        $this->startTime = microtime(true);\n",
    "    }\n",
    "    public function checkpoint()\n",
    "    {\n",
    "        return microtime(true) - $this->startTime;\n",
    "    }\n",
    "}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "13.794004201889\n"
     ]
    },
    {
     "data": {},
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "=> \u001b[36mnull\u001b[39m"
     ]
    },
    {
     "data": {},
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "$iterations = 10000000;\n",
    "$encoded = 'SL.UserSignedUp                 {\"userID\":10}';\n",
    "$timer = new Timer();\n",
    "for ($i = 0; $i < $iterations; $i++) {\n",
    "    sscanf($encoded, '%s');\n",
    "}\n",
    "echo $timer->checkpoint();"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "70.204221963882\n"
     ]
    },
    {
     "data": {},
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "=> \u001b[36mnull\u001b[39m"
     ]
    },
    {
     "data": {},
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "$iterations = 10000000;\n",
    "$encoded = 'SL.UserSignedUp                 {\"userID\":10}';\n",
    "$timer = new Timer();\n",
    "for ($i = 0; $i < $iterations; $i++) {\n",
    "    rtrim(substr($encoded, 0, 32));\n",
    "}\n",
    "echo $timer->checkpoint();"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "\u001b[31;1mPHP Fatal error:  Cannot redeclare strLenStr() in eval()'d code on line 4\u001b[39;22m"
     ]
    },
    {
     "data": {},
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "function strLenStr($str)\n",
    "{\n",
    "    return strlen($str);\n",
    "}\n",
    "\n",
    "function strLenArr(array $str)\n",
    "{\n",
    "    return strlen($str[0]);\n",
    "}\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "18.047049045563\n"
     ]
    },
    {
     "data": {},
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "22.029206991196\n"
     ]
    },
    {
     "data": {},
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "21.150142908096\n"
     ]
    },
    {
     "data": {},
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "=> \u001b[36mnull\u001b[39m"
     ]
    },
    {
     "data": {},
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "$iterations = 10000000;\n",
    "$encoded = 'SL.UserSignedUp                 {\"userID\":10}';\n",
    "\n",
    "$timer = new Timer();\n",
    "for ($i = 0; $i < $iterations; $i++) {\n",
    "    strLenStr($encoded);\n",
    "}\n",
    "echo $timer->checkpoint();\n",
    "\n",
    "$timer = new Timer();\n",
    "$cached = [$encoded];\n",
    "for ($i = 0; $i < $iterations; $i++) {\n",
    "    strLenArr([$encoded]);\n",
    "}\n",
    "echo $timer->checkpoint();\n",
    "\n",
    "$timer = new Timer();\n",
    "$cached = [$encoded];\n",
    "for ($i = 0; $i < $iterations; $i++) {\n",
    "    strLenArr($cached);\n",
    "}\n",
    "echo $timer->checkpoint();"
   ]
  }
 ],
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   "display_name": "PHP",
   "language": "php",
   "name": "jupyter-php"
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 "nbformat_minor": 0
}