> "But it adds some checks and GC, so Swift also exhibits a serious slowdown, though well within 2x of C++."
Swift does not employ GC, it uses ARC. While that may be a form of GC, it doesn't suffer from the same "slowdown" that GC would in this context because ARC is doing exactly what your base case (C++) does at run-time (ARC is a compile-time tool).
I think if you're going to be doing benchmarks, you should have basic knowledge on how each system works first.
Bring on the suits! While GH is busy distracting their world-class engineers with B.S. reverse-racism meetings, they will successfully free up their equity pool for more suit hires. That should suck the life out real quick...
Goodbye revolutionary, forward-thinking work culture & hierarchy (meritocracy). You will be gravely missed. Good luck hiring sub-par engineers for the next 2 years and watching your data centers go down on a daily basis.
I guess the only question left is... who are you switching to?