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A comment on Why Isn't Functional Programming the Norm? [video]. Parent comment

Re:Why Isn't Functional Programming the Norm? [video] by skohan on Thursday October 17, 2019 @11:58AM (#21283379)
Does OCaml give you enough tools to optimize around things like CPU-cache and memory management costs? It's one thing to know what kind of assembly is going to be produced by a block of code, but it's another thing to be able to get the machine to do exactly what you want.
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Re:Why Isn't Functional Programming the Norm? [video] by pjmlp on Friday October 18, 2019 @04:09AM (#21289518)
You can analyze Assembly code just like in any other AOT compiled language.

Have a go at in Godbolt, https://godbolt.org/

OCaml also integrates with perf on Linux,

https://ocaml.org/learn/tutorials/performance_and_profiling....

Some performance tips from an old partially archived page.

https://hackerfall.com/story/writing-performance-sensitive-o...

And if you are feeling fancy, doing some pointer style programming

https://ocaml.org/learn/tutorials/pointers.html

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Re:Why Isn't Functional Programming the Norm? [video] by classified on Thursday October 17, 2019 @12:25PM (#21283653)
If “to get the machine to do exactly what you want” is an important goal, I'd recommend C or C++. Those are well known tools for those purposes. FP languages are rather about getting more ideas from math into how you structure your code.
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Re:Why Isn't Functional Programming the Norm? [video] by OskarS on Thursday October 17, 2019 @12:46PM (#21283864)
I don’t think you need to go that low level. I find it much easier to optimize around things like memory layout, allocation patterns and cache effects even in Java and C# compared to (essentially) any functional language.

I think this is just a feature of imperative languages over functional ones. Functional languages are excellent for many things, but not for this stuff.

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Re:Why Isn't Functional Programming the Norm? [video] by Bjartr on Thursday October 17, 2019 @05:49PM (#21286665)
Where should I look to learn about doing those things in Java? Last time I tried looking for guidance I mostly found people saying it's not worth the effort since the JVM JIT will do better.
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Re:Why Isn't Functional Programming the Norm? [video] by lonelappde on Friday October 18, 2019 @03:32PM (#21294411)
This thread is for people who are smarter than compilers. Java is not different from C in that regard.
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Re:Why Isn't Functional Programming the Norm? [video] by ummonk on Thursday October 17, 2019 @09:04PM (#21287774)
Rust on the other hand is zero-cost abstraction but pushes you to write functional code.
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