maintenance/benchmarks/benchmarkLruHash.php

   1 <?php
   2 /**
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  16  * http://www.gnu.org/copyleft/gpl.html
  17  *
  18  * @file
  19  * @ingroup Benchmark
  20  */
  21
  22 require_once __DIR__ . '/Benchmarker.php';
  23
  24 /**
  25  * Maintenance script that benchmarks HashBagOStuff and MapCacheLRU.
  26  *
  27  * @ingroup Benchmark
  28  */
  29 class BenchmarkLruHash extends Benchmarker {
  30         protected $defaultCount = 1000;
  31
  32         public function __construct() {
  33                 parent::__construct();
  34                 $this->addDescription( 'Benchmarks HashBagOStuff and MapCacheLRU.' );
  35                 $this->addOption( 'method', 'One of "construct" or "set". Default: [All]', false, true );
  36         }
  37
  38         public function execute() {
  39                 $exampleKeys = [];
  40                 $max = 100;
  41                 $count = 500;
  42                 while ( $count-- ) {
  43                         $exampleKeys[] = wfRandomString();
  44                 }
  45                 // 1000 keys (1...500, 500...1)
  46                 $keys = array_merge( $exampleKeys, array_reverse( $exampleKeys ) );
  47
  48                 $method = $this->getOption( 'method' );
  49                 $benches = [];
  50
  51                 if ( !$method || $method === 'construct' ) {
  52                         $benches['HashBagOStuff::__construct'] = [
  53                                 'function' => function () use ( $max ) {
  54                                         $obj = new HashBagOStuff( [ 'maxKeys' => $max ] );
  55                                 },
  56                         ];
  57                         $benches['MapCacheLRU::__construct'] = [
  58                                 'function' => function () use ( $max ) {
  59                                         $obj = new MapCacheLRU( $max );
  60                                 },
  61                         ];
  62                 }
  63
  64                 if ( !$method || $method === 'set' ) {
  65                         // For the set bechmark, do object creation in setup (not measured)
  66                         $hObj = null;
  67                         $benches['HashBagOStuff::set'] = [
  68                                 'setup' => function () use ( &$hObj, $max ) {
  69                                         $hObj = new HashBagOStuff( [ 'maxKeys' => $max ] );
  70                                 },
  71                                 'function' => function () use ( &$hObj, &$keys ) {
  72                                         foreach ( $keys as $i => $key ) {
  73                                                 $hObj->set( $key, $i );
  74                                         }
  75                                 }
  76                         ];
  77                         $mObj = null;
  78                         $benches['MapCacheLRU::set'] = [
  79                                 'setup' => function () use ( &$mObj, $max ) {
  80                                         $mObj = new MapCacheLRU( $max );
  81                                 },
  82                                 'function' => function () use ( &$mObj, &$keys ) {
  83                                         foreach ( $keys as $i => $key ) {
  84                                                 $mObj->set( $key, $i );
  85                                         }
  86                                 }
  87                         ];
  88                 }
  89
  90                 $this->bench( $benches );
  91         }
  92 }
  93
  94 $maintClass = BenchmarkLruHash::class;
  95 require_once RUN_MAINTENANCE_IF_MAIN;