public function testPerformances2()
{
$this->clearDb();
$this->load2000PersonsWith5SkillsDepth1();
$personsRepository = $this->em->getRepository(Person::class);
$avgTime = 0;
for ($i = 1; $i < self::$NUMBER_OF_RUNS; ++$i) {
$testTag = 'run' . $i;
$this->stopwatch->start($testTag);
$persons = $personsRepository->findAll();
$this->assertCount(2000, $persons);
$e = $this->stopwatch->stop($testTag);
$avgTime += $e->getDuration();
}
$this->displayMessage(1000, 3000, $avgTime / self::$NUMBER_OF_RUNS);
}