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by mjburgess 496 days ago
Ritchie's Revenge: And this half is still faster than Common Lisp.
2 comments

Only when adding UB exploits done by optimizing compiler backends.

I am old enough to remeber the days any junior Assembly programmer could easily outperform any machine code generated by the C compilers of the day.

SBCL (the most popular Common Lisp implementation) is pretty darn fast, being comparable to Java, Go or OCaml.

https://benchmarksgame-team.pages.debian.net/benchmarksgame/

But still slow compared to a non-GC'd language. Walking over all the references of your program while its stopped is slow.