MediaWiki 1.30.2

[autoinstallsdev/mediawiki.git] / maintenance / benchmarks / benchmarkLruHash.php

diff --git a/maintenance/benchmarks/benchmarkLruHash.php b/maintenance/benchmarks/benchmarkLruHash.php
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+++ b/maintenance/benchmarks/benchmarkLruHash.php
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+<?php
+/**
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @ingroup Benchmark
+ */
+
+require_once __DIR__ . '/Benchmarker.php';
+
+/**
+ * Maintenance script that benchmarks HashBagOStuff and MapCacheLRU.
+ *
+ * @ingroup Benchmark
+ */
+class BenchmarkLruHash extends Benchmarker {
+       protected $defaultCount = 1000;
+
+       public function __construct() {
+               parent::__construct();
+               $this->addDescription( 'Benchmarks HashBagOStuff and MapCacheLRU.' );
+               $this->addOption( 'construct', 'Run construct only', false, false );
+               $this->addOption( 'fill', 'Run fill only', false, false );
+       }
+
+       public function execute() {
+               $exampleKeys = [];
+               $max = 100;
+               $count = 500;
+               while ( $count-- ) {
+                       $exampleKeys[] = wfRandomString();
+               }
+               // 1000 keys (1...500, 500...1)
+               $keys = array_merge( $exampleKeys, array_reverse( $exampleKeys ) );
+
+               $fill = $this->hasOption( 'fill' ) || !$this->hasOption( 'construct' );
+               $construct = $this->hasOption( 'construct' ) || !$this->hasOption( 'fill' );
+               $benches = [];
+
+               if ( $construct ) {
+                       $benches['HashBagOStuff-construct'] = [
+                               'function' => function () use ( $max ) {
+                                       $obj = new HashBagOStuff( [ 'maxKeys' => $max ] );
+                               },
+                       ];
+                       $benches['MapCacheLRU-construct'] = [
+                               'function' => function () use ( $max ) {
+                                       $obj = new MapCacheLRU( $max );
+                               },
+                       ];
+               }
+
+               if ( $fill ) {
+                       // For the fill bechmark, ensure object creation is not measured.
+                       $hObj = null;
+                       $benches['HashBagOStuff-fill'] = [
+                               'setup' => function () use ( &$hObj, $max ) {
+                                       $hObj = new HashBagOStuff( [ 'maxKeys' => $max ] );
+                               },
+                               'function' => function () use ( &$hObj, &$keys ) {
+                                       foreach ( $keys as $i => $key ) {
+                                               $hObj->set( $key, $i );
+                                       }
+                               }
+                       ];
+                       $mObj = null;
+                       $benches['MapCacheLRU-fill'] = [
+                               'setup' => function () use ( &$mObj, $max ) {
+                                       $mObj = new MapCacheLRU( $max );
+                               },
+                               'function' => function () use ( &$mObj, &$keys ) {
+                                       foreach ( $keys as $i => $key ) {
+                                               $mObj->set( $key, $i );
+                                       }
+                               }
+                       ];
+               }
+
+               $this->bench( $benches );
+       }
+}
+
+$maintClass = BenchmarkLruHash::class;
+require_once RUN_MAINTENANCE_IF_MAIN;