Has anyone got any experience using javascript/V8 as a scripting language for a C++ app? We currently use python with boost::python bindings, but are finding we have to limit the amount of python code, as it is too slow.
Are there any plans to port LuaJIT to ARM or LLVM? I see a couple of posts mentioning slow FP performance on ARM, but that could be solved with a technique like that used by LNUM.
The LLVM IR is too low level. It loses some context necessary to get the performance of the tailored JIT written by Mike Pall.
There is a separate effort to write a JIT complier for Lua on top of the LLVM, but the performance is not as good as LuaJIT, and reaching such a level will be very complex, (assuming it's possible).
There is sponsorship for a PPC LuaJIT port (targeting embedded systems, I believe) and Mike Pall has expressed interest in an ARM port in the past, but I don't know what the status of that is.
At Anybots, we built all the real-time robot code in Python with performance-critical bits in C++ wrapped using boost::python. Server code is in pure Javascript on Node.JS. I haven't tried to integrate C++ into Node, but it looks easy.
