Re:OTP 23
by bsaul on Wednesday May 13, 2020 @02:26PM
(#23170009)
i don't think erlang is requiring FP + immutable + message passing for performance, but rather for correctness. Making copies is actually more expensive in terms of perf.
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me too, and I have no clue as to how changing language can increase correctness in my case. I can think of other use cases where in-process concurrency and mutating data structures could cause problems, but I avoid those scenarios entirely anyway.