I think that we should either place this into a new "Hardware-accelerated tracing" subsection or rename the "Hardware Counters" subsection in a way that covers both techonolgies. Hardware tracing units and performance counters work in different ways and have different use cases (i.e., profiling vs tracing), so we should definitely make a distinction here.

I'll add a new section. Thanks!

That's a copy from hwt(4), so we might want to update that manual as well if desired.

Okay. So if you're running current, look at apropos freebsd. I've spent a ton of effort over the last two years to try and scope it to broad concept overview manuals. This one should get on there.

Committed: 47ffc24fbb6476676c0d40b28e43c83dbc8fac9d