public function gc() 
	{
		$lifetime = \CCArr::get( 'lifetime', $this->_config, \CCDate::minutes( 5 ) );
		
		if ( $lifetime < ( $min_lifetime = \CCArr::get( 'min_lifetime', $this->_config, \CCDate::minutes( 5 ) ) ) )
		{
			$lifetime = $min_lifetime;
		}
		
		$this->_driver->gc( $lifetime );
	}