[shakna]

LuaJIT is x86, ARM, PPC and MIPS only.

However, Lua itself can run on anything with the C stdlib and a C99 compiler. Which means for realtime systems you're not generally going to be talking about LuaJIT.

The speed of Lua will depend on the GC in use. Whilst that is an incremental one be default, Lua is designed to allow you to disable it altogether, use the older reference counting one, replace it entirely with your own allocation system, and so on, so that it can meet hard realtime requirements.

[saikyun]

Aha, thanks for the info. Then I believe Janet could fill a similar role. What little profiling I've seen puts them in a similar category: https://github.com/MikeBeller/janet-benchmarksgame/blob/mast...

Though I imagine it's hard to say without actually trying it.