Calculate the time taken for interest point extraction

[CZH-cpu]

Hello, how should I calculate the time taken for a simple point of interest extraction? In the code, interest points and descriptors are calculated simultaneously：
desc, kpt, _ = model.run_test_data(gray_img)

    def run_test_data(self, data):
        """"""
        out_data = self._run(data)
        return out_data

    def _run(self, data):
        raise NotImplementedError

This really confuses me how to calculate the time consumed by the point of interest extraction, I look forward to your reply and thank you for your excellent work!