Oh on arm you will definitely will want to check out luajit precisely for the number performance - see this comment for details : http://news.ycombinator.com/item?id=2617835 - luajit will use integers where it can.
I did not experiment with this myself though, but hopefully it might ease your woes with no FPU - http://luajit.org/performance_arm.html shows 85x speedup for md5, which I suppose would be integer algorithm.
Out of curiosity, what is the platform, if not a secret ?
I did not experiment with this myself though, but hopefully it might ease your woes with no FPU - http://luajit.org/performance_arm.html shows 85x speedup for md5, which I suppose would be integer algorithm.
Out of curiosity, what is the platform, if not a secret ?