[Mono-list] Will mono jit duplicate the machine code if they are in different thread?

[nepneps]

This is a question about mono jit memory overhead.
Mono jit will generate machine of il code and cache them to memory.

I want to ask will mono duplicate the machine code of "same il code" because they are in different thread?
eg: lambda, expression

Also want to ask how many memory will spent by mono jit on a large project (total binary size > 100mb) usually?
I'm asking it because I known some language base on jit runtime will cause 50%~70% memory overhead on machine code generation.