Очистка кеша Битрикс

BXClearCache(true, '/dirname/');
\Bitrix\Main\Data\Cache::createInstance()->cleanDir('/dirname/');
\Bitrix\Main\Application::getInstance()->getTaggedCache()->deleteAllTags();
\Bitrix\Main\Composite\Page::getInstance()->deleteAll();
(new \Bitrix\Main\Data\ManagedCache())->cleanAll();
(new \CStackCacheManager())->CleanAll();