Hmm in the 2025 talk ( https://youtu.be/f30PceqQWko?si=qZESxMaSyt7fYMfz ), Andrew emphasizes that this approach is more efficient than before- even showing compiled assembly iirc. I guess that was a one-off?
My guess is that one of these (Andrew) is measuring syscalls and the other is measuring vtable indirections.
My guess is that one of these (Andrew) is measuring syscalls and the other is measuring vtable indirections.