Didnt know this existed, interesting, but certainly could be useful at a forensic level, have had tools to highlight slow running multi threaded code in apps for probably about 15years now, but this takes it to a whole new level.

From the link it says: " it needs a post-Skylake Intel processor " https://en.wikipedia.org/wiki/Skylake_(microarchitecture)

Man page has a description https://www.man7.org/linux/man-pages/man1/perf-intel-pt.1.ht...

Dont know who LauterBach in Germany are, but they have a training manual which goes back to 1989.

https://www2.lauterbach.com/pdf/training_ipt_trace.pdf

https://www2.lauterbach.com/pdf/trace_intel_pt.pdf

https://www2.lauterbach.com/pdf/debugger_x86.pdf

From their manuals "The Intel® Processor Trace (IPT) works similar to the LBR and BTS feature of Ix86 based cores (see “CPU specific Onchip Trace Commands” (debugger_x86.pdf)"

I knew about the debugger on ARM cpu's like the Rpi, didnt know about Intel having one, but its suggested AMD dont have one either, so there might be some security reason for that, depends on if the trace is just output only or whether its possible to use things like SOIC clips to alter bits and bytes in realtime, but like slowed down not normal cpu clock speeds.