What will be the period of a simple pendulum in a black hole??

We all know that simple pendulum is a weight suspended from a certain height. Time taken by a simple pendulum to perform one complete cycle is called period of the pendulum. On earth, a pendulum of effective length 1 meter has period of approximately 2 seconds+0.0x (x is a number). If we go to more massive planets then this will be increased. And finally if we go to a black hole, what will happen?? Think about it, will it rise to inanity? What about its frequency? Let a lot of questions grow inside you and try to find answers to them.