[bravetraveler]

I believe so, I remember a fair amount of hubbub over it.

Can't say it's been useful here, any development I do is miles away from this. It hasn't hurt either so... cool, I guess

Call me pessimistic, but I'm not convinced this being the default will lead to more profiling. There's plenty that could be done without this, that isn't, so I'm not buying it.

[brancz]

While profiling benefits immensely, imagine all the other ramifications. Cheap tracing of MySQL, postgres, or anything else using bpftrace or any other bcc tools. Getting stack traces of processes that are already core dumping...

Profiling is one part, but the debuggability this enables is going to be huge in the long term I predict.