Unusual slow Julia code compared to C++?

[KestutisMa]

OK, thanks interesting observations, I also did few optimizations to C++ code and results are (using simulation length 1000): C++ (GCC 8.3) 280 ms, Julia (v1.1.1) 240 ms. Perhaps both codes could be optimized a little more, but results are very good and Julia has potential to solve two-languages problem at this case. Julia code now is a bit longer but still shorter than C++. Now Julia with faster debugger would be a nice candidate for replacing MATLAB/Python for prototyping.

[anon67531922]

@anon67531922

Usually, what happens is you build your prototype. Seeing a 10x slowdown compared to C++ with a prototype is actually pretty impressive I think. Once you have improved your typed stability, removed unnecessary allocations and done some other optimizations, I am 100% confident your model will run as fast or faster in Julia than C++. I’ve seen the same thing happen over and over again.

Yet again