Founder of Polar Signals here, the profiling product that's mentioned in the blog post. We've already made it possible to unwind without frame pointers relatively cheaply (<1% overhead), and have written about this extensively [1].

That said, no matter how we spin it, frame pointer unwinding is always going to be cheaper, and while profiling is getting better, I think I'm almost more excited about the other aspects of debuggability this is gaining: out-of-the-box working bpftrace, bcc-tool and anything else that needs to deal with unwinding with just about anything that's running on the box. I think we'll see a huge gain in capabilities over the next few years with frame pointers more prevalent in fedora and ubuntu and I'm sure more will now follow.

[1] https://www.polarsignals.com/blog/posts/2022/11/29/dwarf-bas...