Added utilities to instrument kernel bandwidth numbers (#95355)
Looks like
![image](https://user-images.githubusercontent.com/6355099/221048077-33aeff50-0951-42c9-89e9-22049db4f94d.png)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/95355
Approved by: https://github.com/ngimel, https://github.com/jansel