I ran some informal benchmarks in Lua to see how switching from 32 to 64 bit affected memory usage, and it seemed to take very roughly 1.3-1.4 times as much. Th

I ran some informal benchmarks in Lua to see how switching from 32 to 64 bit affected memory usage, and it seemed to take very roughly 1.3-1.4 times as much. There's other noise in the totals besides just doubling pointer size, though - padding in C structs due to pointer alignment, for example.