Hello, I am new in this distribution list. I am using Rcpp for my project, and I enjoy the Rcpp implementation quite a lot.
I have read the paper https://www.sas.upenn.edu/~jesusfv/Update_March_23_2018.pdf and I see the performance of Rcpp is about 4x times slower than C++ proper code, or 3x times slower than Numba/Cython Python code. Do you think that these figures are realistic? Of course, performance calculations are always dependent on many factors (very often, not explicit). But I am surprised that Rcpp is that slow in comparison to C++ code. I do not understand that Rcpp may be so slow, unless there are many calls back and forth between Rcpp and R. The same for compiled Python code vis a vis Rcpp. Or maybe I am wrong? Jordi Molins i Coronado +34 69 38 000 59
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