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On Sat, Nov 6, 2010 at 09:48, liam mail <> wrote:
> In my experience lua_getmetatable and luaL_checkudata in Lua (not checked
> with LuaJit) are bottlenecks, which I have gone out of my way to avoid.

I think that  lua_getmetatable is just fine. It is luaL_getmetatable
that can become a bottleneck due to its string allocations via