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Re:Rust as a gateway drug to Haskell by delhanty on Wednesday June 14, 2017 @08:28AM (#14552204)
I agree with all that, particularly the bit about the c ffi call. It's more relevant to compare Rust with C and C++, as Rust is a language that could reasonably display C for the ffi call.

But then remember that @wyager is claiming

>80% as fast as hand-optimized C for only 10% of the effort of hand-optimized C

If it's really only 10% of the effort then one shouldn't really have "to work on it" to get semi-decent performance.

A more modest claim of say:

50% as fast as hand-optimized C for only 20% of the effort of hand-optimized C

would have been more credible and still a big win for many use cases.

Re:Rust as a gateway drug to Haskell by Tarean on Thursday June 15, 2017 @04:39PM (#14564159)
Tried my hand at the knucleotide[1] one. Lifted the algorithm from the fastest rust solution. As optimization I dropped some Unpack pragmas and strictness annotations, used Data.Hashtable.Cuckoo for in-place updating hash tables because that seemed necessary for the task, and added naive parallelization via

   let outputs = map (exec content) tasks `using` parList rseq
That got around 24 seconds which seems acceptable for a fairly straightforward solution that is around half the size of the rust one I copied. Might try to optimize later.

[1]: http://benchmarksgame.alioth.debian.org/u64q/knucleotide.htm...

Re:Rust as a gateway drug to Haskell by igouy on Friday June 16, 2017 @05:05PM (#14572642)