🚀 go-pugleaf

A couple of questions re additional memory needed to run in a 64 bit
address space:

1)	Would anyone care to speculate on page sizes and layouts
	for mmu descriptors ? Seems like the dimensions of these
	items get very big quickly. Does the problem get better if
	we avoid building knowledge of mmu tables/levels into hardware ?

2)	How much additional memory would be needed to run a garden
	variety program that is happy in a 32 bit environment ?
	My bet would be that data space doubles.

3)	Other space wasted by allocation due to larger page sizes ?

4)	Possible increases in bus traffic due to normal stack accesses
	etc. ? Possible increase in context switch overhead ?

5)	Applicable data from early 16 to 32 bit ports ?



Rob Kleinschmidt