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diff --git a/www/wiki/maintenance/benchmarks/benchmarkLruHash.php b/www/wiki/maintenance/benchmarks/benchmarkLruHash.php
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+++ b/www/wiki/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( '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;