I discuss Intel Performance Trace in the writeup where I propose my much simpler hardware support for tracing: https://yosefk.com/blog/profiling-in-production-with-functio...

Like I said there, I'm frankly shocked that all CPUs haven't raced to implement similar features, that magic-trace which is built on top of Intel Performance Trace isn't used more widely, and that developers aren't insisting on running under magic-trace in production and requiring to deploy on Intel servers for that purpose.

The extension I propose is much simpler, and seems similar to what PTWRITE would do if it was the only feature in Intel Performance Trace. I have a lot of experience in chip architecture, and I believe that every CPU maker and every chip maker can support this easily - much more so than full feature parity with Intel Performance Trace. I hope they will!