There is something wrong with this code when calling serviceLocator with no use there is decrease is ram but when commenting it out, usage of resources increases. I am checking resources usage by zenddeveloper tools. it is on line 6.

gistfile1.txt

    public function getViewHelperConfig()
    {
        return array(
            'factories' => array(
                'sidebarMenu' => function ($helpers){ 
                    // $helpers->getServiceLocator();
                    return new SidebarMenu();
                },
            )
        );
    }