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( 'method', 'One of "construct" or "set". Default: [All]', false, true );
    }

    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 ) );

        $method = $this->getOption( 'method' );
        $benches = [];

        if ( !$method || $method === '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 ( !$method || $method === 'set' ) {
            // For the set bechmark, do object creation in setup (not measured)
            $hObj = null;
            $benches['HashBagOStuff::set'] = [
                'setup' => function () use ( &$hObj, $max ) {
                    $hObj = new HashBagOStuff( [ 'maxKeys' => $max ] );
                },
                'function' => function () use ( &$hObj, &$keys ) {
                    foreach ( $keys as $i => $key ) {
                        $hObj->set( $key, $i );
                    }
                }
            ];
            $mObj = null;
            $benches['MapCacheLRU::set'] = [
                'setup' => function () use ( &$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;