Impact of several Lua environments

[David Anderson <david.anderson@...>]

Hi all,

I am thinking about implementing Lua in a MUD engine to allow easy 
modifications of stuff, and for this I need (read "it would be nice") to 
have a separate Lua environment for each object in the game, so that 
variables don't conflict.

What is the memory and speed impact of creating several (dozens) Lua 
environments? Does memory usage grow proportionally?
Thanks in advance
David Anderson