XPU_Timer V2 features

[samplise]

Is your feature request related to a problem? Please describe.
Yes. XPU_Timer V2.

Describe the solution you'd like
I want to open a discussion on required xpu_timer v2 features.

Describe alternatives you've considered

Additional context

[lizdongkun]

In the 2nd version of xpu timer code:
(1) there are still some key LD_PRELOAD hooks remained，would there be a list for the key functions that got hooked? is this mainly for getting problem size ? For this part, would that still be a problem to maintain between different CUDA Runtime API
(2) For CUPTI part, what kinds of CUPTI API does the code mainly rely on? Based on Activity API we already could get lots of data belonging to different KINDs. Would that be enough for tracing the performance or not

Thanks!!