benchmarkLruHash.php

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<?php
require_once __DIR__ . '/Benchmarker.php';
 
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;