Benchmarking instantiation of proxies

tests/Doctrine/Performance/LazyLoading/ProxyInstantiationTimeBench.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace Doctrine\Performance\LazyLoading;
+
+use Doctrine\Common\Proxy\AbstractProxyFactory;
+use Doctrine\Performance\EntityManagerFactory;
+use Doctrine\Tests\Models\CMS\CmsEmployee;
+use Doctrine\Tests\Models\CMS\CmsUser;
+use PhpBench\Benchmark\Metadata\Annotations\BeforeMethods;
+
+/**
+ * @BeforeMethods({"init"})
+ */
+final class ProxyInstantiationTimeBench
+{
+    /**
+     * @var AbstractProxyFactory
+     */
+    private $proxyFactory;
+
+    public function init()
+    {
+        $this->proxyFactory = EntityManagerFactory::getEntityManager([])->getProxyFactory();
+    }
+
+    public function benchCmsUserInstantiation()
+    {
+        for ($i = 0; $i < 100000; ++$i) {
+            $this->proxyFactory->getProxy(CmsUser::class, ['id' => $i]);
+        }
+    }
+
+    public function benchCmsEmployeeInstantiation()
+    {
+        for ($i = 0; $i < 100000; ++$i) {
+            $this->proxyFactory->getProxy(CmsEmployee::class, ['id' => $i]);
+        }
+    }
+}
+