maintenance/benchmarks/bench_if_switch.php

   1 <?php
   2 /**
   3  * Benchmark if elseif... versus switch case.
   4  *
   5  * This come from r75429 message
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  20  * http://www.gnu.org/copyleft/gpl.html
  21  *
  22  * @file
  23  * @ingroup Benchmark
  24  * @author  Platonides
  25  */
  26
  27 require_once __DIR__ . '/Benchmarker.php';
  28
  29 /**
  30  * Maintenance script that benchmark if elseif... versus switch case.
  31  *
  32  * @ingroup Maintenance
  33  */
  34 class bench_if_switch extends Benchmarker {
  35
  36         public function __construct() {
  37                 parent::__construct();
  38                 $this->mDescription = "Benchmark if elseif... versus switch case.";
  39         }
  40
  41         public function execute() {
  42                 $this->bench( array(
  43                         array( 'function' => array( $this, 'doElseIf' ) ),
  44                         array( 'function' => array( $this, 'doSwitch' ) ),
  45                 ));
  46                 print $this->getFormattedResults();
  47         }
  48
  49         // bench function 1
  50         function doElseIf() {
  51                 $a = 'z';
  52                 if( $a == 'a') {}
  53                 elseif( $a == 'b') {}
  54                 elseif( $a == 'c') {}
  55                 elseif( $a == 'd') {}
  56                 elseif( $a == 'e') {}
  57                 elseif( $a == 'f') {}
  58                 elseif( $a == 'g') {}
  59                 elseif( $a == 'h') {}
  60                 elseif( $a == 'i') {}
  61                 elseif( $a == 'j') {}
  62                 elseif( $a == 'k') {}
  63                 elseif( $a == 'l') {}
  64                 elseif( $a == 'm') {}
  65                 elseif( $a == 'n') {}
  66                 elseif( $a == 'o') {}
  67                 elseif( $a == 'p') {}
  68                 else {}
  69         }
  70
  71         // bench function 2
  72         function doSwitch() {
  73                 $a = 'z';
  74                 switch( $a ) {
  75                         case 'b': break;
  76                         case 'c': break;
  77                         case 'd': break;
  78                         case 'e': break;
  79                         case 'f': break;
  80                         case 'g': break;
  81                         case 'h': break;
  82                         case 'i': break;
  83                         case 'j': break;
  84                         case 'k': break;
  85                         case 'l': break;
  86                         case 'm': break;
  87                         case 'n': break;
  88                         case 'o': break;
  89                         case 'p': break;
  90                         default:
  91                 }
  92         }
  93 }
  94
  95 $maintClass = 'bench_if_switch';
  96 require_once RUN_MAINTENANCE_IF_MAIN;