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by throwawaymaths 1167 days ago
Where did you get this idea? Depending on your task, Erlang can be very fast with IO because it will aggressively use writev/readv instead of write. Obviously, you can do this if you "know about it" in low level langs, but it might be a pain.

Erlang is generally considered to be compute-slow (which is generally the case without dropping to nifs).