Re: [Caml-list] Invoking Java programs from an OCaml program

[forum@x9c.fr]

Le 18.12.2015 11:25, Seungcheol Jung a écrit :

(...)


> 1. OCaml-Java
> From my understanding, OCaml-Java[1] compiles OCaml code into byte code 
> and
> packs the byte code, interpreter, and Java code into one Java 
> application. It
> looks more like embedding OCaml code in Java, not getting some help 
> from
> Java. So it does not satisfy my pro-OCaml taste. I am also concerned 
> about
> slowdowns due to byte code and interpreter.

OCaml-Java actually compiles OCaml code to *Java* bytecode, meaning that 
no
OCaml interpreter is involved. Of course, the ocamljava-compiled 
programs are
slower than ocamlopt-compiled ones; however, the factor is heavily 
dependent
on the kind of computation.

Currently the rule of thumb is that ocamljava-compiled code is roughly 3 
times
slower, with numerical code on par and "massively functional code" much 
slower
(sometimes 10x slower).


Hope this helps,

Xavier