diff --git a/tests/Doctrine/Tests/ORM/Performance/InheritancePersisterPerformanceTest.php b/tests/Doctrine/Tests/ORM/Performance/InheritancePersisterPerformanceTest.php
new file mode 100644
index 000000000..01113f21b
--- /dev/null
+++ b/tests/Doctrine/Tests/ORM/Performance/InheritancePersisterPerformanceTest.php
@@ -0,0 +1,63 @@
+<?php
+
+namespace Doctrine\Tests\ORM\Performance;
+
+use Doctrine\ORM\Tools\SchemaTool;
+use Doctrine\ORM\Query;
+
+require_once __DIR__ . '/../../TestInit.php';
+
+class InheritancePersisterPerformanceTest extends \Doctrine\Tests\OrmFunctionalTestCase
+{
+    protected function setUp()
+    {
+        $this->useModelSet('company');
+        parent::setUp();
+    }
+
+    public function testCompanyContract()
+    {
+        $person = new \Doctrine\Tests\Models\Company\CompanyEmployee();
+        $person->setName('Poor Sales Guy');
+        $person->setDepartment('Sales');
+        $person->setSalary(100);
+        $this->_em->persist($person);
+
+        for ($i = 0; $i < 33; $i++) {
+            $fix = new \Doctrine\Tests\Models\Company\CompanyFixContract();
+            $fix->setFixPrice(1000);
+            $fix->setSalesPerson($person);
+            $fix->markCompleted();
+            $this->_em->persist($fix);
+
+            $flex = new \Doctrine\Tests\Models\Company\CompanyFlexContract();
+            $flex->setSalesPerson($person);
+            $flex->setHoursWorked(100);
+            $flex->setPricePerHour(100);
+            $flex->markCompleted();
+            $this->_em->persist($flex);
+
+            $ultra = new \Doctrine\Tests\Models\Company\CompanyFlexUltraContract();
+            $ultra->setSalesPerson($person);
+            $ultra->setHoursWorked(150);
+            $ultra->setPricePerHour(150);
+            $ultra->setMaxPrice(7000);
+            $this->_em->persist($ultra);
+        }
+
+        $this->_em->flush();
+        $this->_em->clear();
+
+        $start = microtime(true);
+        $contracts = $this->_em->getRepository('Doctrine\Tests\Models\Company\CompanyContract')->findAll();
+        echo "99 CompanyContract: " . number_format(microtime(true) - $start, 6) . "\n";
+        $this->assertEquals(99, count($contracts));
+
+        $this->_em->clear();
+
+        $start = microtime(true);
+        $contracts = $this->_em->getRepository('Doctrine\Tests\Models\Company\CompanyContract')->findAll();
+        echo "99 CompanyContract: " . number_format(microtime(true) - $start, 6) . "\n";
+        $this->assertEquals(99, count($contracts));
+    }
+}
\ No newline at end of file
diff --git a/tests/Doctrine/Tests/ORM/Performance/PersisterPerformanceTest.php b/tests/Doctrine/Tests/ORM/Performance/PersisterPerformanceTest.php
new file mode 100644
index 000000000..bbd4f445f
--- /dev/null
+++ b/tests/Doctrine/Tests/ORM/Performance/PersisterPerformanceTest.php
@@ -0,0 +1,118 @@
+<?php
+
+namespace Doctrine\Tests\ORM\Performance;
+
+use Doctrine\ORM\Tools\SchemaTool;
+use Doctrine\ORM\Query;
+use Doctrine\Tests\Models\CMS\CmsUser;
+use Doctrine\Tests\Models\CMS\CmsPhonenumber;
+use Doctrine\Tests\Models\CMS\CmsAddress;
+use Doctrine\Tests\Models\CMS\CmsGroup;
+use Doctrine\Tests\Models\CMS\CmsArticle;
+use Doctrine\Tests\Models\CMS\CmsComment;
+
+require_once __DIR__ . '/../../TestInit.php';
+
+class PersisterPerformanceTest extends \Doctrine\Tests\OrmFunctionalTestCase
+{
+    protected function setUp()
+    {
+        $this->useModelSet('cms');
+        parent::setUp();
+    }
+
+    public function testFindCmsArticle()
+    {
+        $author = new CmsUser();
+        $author->name = "beberlei";
+        $author->status = "active";
+        $author->username = "beberlei";
+        $this->_em->persist($author);
+
+        $ids = array();
+        for ($i = 0; $i < 100; $i++) {
+            $article = new CmsArticle();
+            $article->text = "foo";
+            $article->topic = "bar";
+            $article->user = $author;
+            $this->_em->persist($article);
+            $ids[] = $article;
+        }
+        $this->_em->flush();
+        $this->_em->clear();
+
+        $start = microtime(true);
+        $articles = $this->_em->getRepository('Doctrine\Tests\Models\CMS\CmsArticle')->findAll();
+        echo "100 CmsArticle findAll(): " . number_format(microtime(true) - $start, 6) . "\n";
+
+        $this->_em->clear();
+
+        $start = microtime(true);
+        $articles = $this->_em->getRepository('Doctrine\Tests\Models\CMS\CmsArticle')->findAll();
+        echo "100 CmsArticle findAll(): " . number_format(microtime(true) - $start, 6) . "\n";
+
+        $this->_em->clear();
+
+        $start = microtime(true);
+        for ($i = 0; $i < 100; $i++) {
+            $articles = $this->_em->getRepository('Doctrine\Tests\Models\CMS\CmsArticle')->find($ids[$i]->id);
+        }
+        echo "100 CmsArticle find(): " . number_format(microtime(true) - $start, 6) . "\n";
+
+        $this->_em->clear();
+
+        $start = microtime(true);
+        for ($i = 0; $i < 100; $i++) {
+            $articles = $this->_em->getRepository('Doctrine\Tests\Models\CMS\CmsArticle')->find($ids[$i]->id);
+        }
+        echo "100 CmsArticle find(): " . number_format(microtime(true) - $start, 6) . "\n";
+    }
+
+    public function testFindCmsGroup()
+    {
+        for ($i = 0; $i < 100; $i++) {
+            $group = new CmsGroup();
+            $group->name = "foo" . $i;
+            $this->_em->persist($group);
+        }
+        $this->_em->flush();
+        $this->_em->clear();
+
+        $start = microtime(true);
+        $articles = $this->_em->getRepository('Doctrine\Tests\Models\CMS\CmsGroup')->findAll();
+        echo "100 CmsGroup: " . number_format(microtime(true) - $start, 6) . "\n";
+
+        $this->_em->clear();
+
+        $start = microtime(true);
+        $articles = $this->_em->getRepository('Doctrine\Tests\Models\CMS\CmsGroup')->findAll();
+        echo "100 CmsGroup: " . number_format(microtime(true) - $start, 6) . "\n";
+    }
+
+    public function testFindCmsUser()
+    {
+        for ($i = 0; $i < 100; $i++) {
+            $user = new CmsUser();
+            $user->name = "beberlei";
+            $user->status = "active";
+            $user->username = "beberlei".$i;
+            $this->_em->persist($user);
+        }
+
+        $this->_em->flush();
+        $this->_em->clear();
+
+        $start = microtime(true);
+        $articles = $this->_em->getRepository('Doctrine\Tests\Models\CMS\CmsUser')->findAll();
+        echo "100 CmsUser: " . number_format(microtime(true) - $start, 6) . "\n";
+
+        $this->_em->clear();
+
+        $start = microtime(true);
+        $articles = $this->_em->getRepository('Doctrine\Tests\Models\CMS\CmsUser')->findAll();
+        echo "100 CmsUser: " . number_format(microtime(true) - $start, 6) . "\n";
+    }
+}
+
+
+