perf is a tool to gather performance and debug data on a running system with a deep insight into program functions etc. Since it will need a bunch of new libs within the system, I'd like to find out if there is the need for it or not.

I guess I'd ask the question of whether we have any complaints of performance type issues that perf could pinpoint? I don't know if I've ever seen any of those kind of complaints in the circles I hang out in.

@kroy AFAIK, intel drivers, KVM (VM performance and I/O), Kernel memory I/O etc.
Performace data can be recorded and replyed asewll. Looks like candidate for debug images as @c-po pointed out.