[eigenspace]

I see, thanks for the explanation!

I think with StaticCompiler.jl, if you create a binary where the compiled code knows there won't be any GC, for instance, say you only ever work with Tuples and floating point numbers, I don't think there will be any GC runtime in the compiled binary.

I could be wrong about this though.

[cmcaine]

Julia can stack allocate all sorts of values. I think it currently stack allocates all immutable values and also every mutable value that it proves do not escape their function.

Kind of besides the point, though, because the GC is probably not heavy anyway. Lots of fear of GC is not based on benchmarks.