It is possible on a jailbroken device (in fact, when I had gdb connected to my app running on a non-jailbroken device, it worked; but of course when the device was not connected, it crashed). So no, this is not a hardware limitation at all. But the interpreter is plenty fast; even on a phone. We just released a game project on the app store using it and never had to even think about optimization. – Fjölnir On Sep 5, 2012, at 09:58 , Tom Yaxley <tommitytom@xxxxxxxxx> wrote: > I posted this on the lua mailing list and it was recommended that I > post here instead: > > I'm aware that luajit can only be interpreted on iOS, but I was > curious if this is a physical limitation of iDevices, or just a > software limitation? For instance, could the jit compiler be used on > a jailbroken iDevice? Secondly, is it possible o compile the jit code > somehow so it can be loaded on an iDevice? Since then it wouldn't > have to do any generation at runtime (or maybe it would, I'm not sure > of the exact internals of luajit :) Cheers! >