CoreSight components benchmarking/overhead evaluation

Hello,

I have a couple of questions regarding CoreSight components.

How can I evaluate the bandwidth of CS components ? How to evaluate energy overhead introduced by activating CS components ? What would be the best metrics to evaluate CS components or similar debug components ?

Besides, I tried evaluating CS components overhead and I did not really see any change in execution time overhead. I understand that this is because the PTM is non-intrusive debug component and that it has a copy of cpu instructions and it operates in parallel. Am I right about this ?

Thank you very much for your help and time. Best Regards, M.Abdul WAHAB