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by rwmj
6096 days ago
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Very true: One thing you've missed is that current x86-64 is not yet providing a true 64 bit address space. Only 44 or 48 bits are provided in shipping hardware. This will no doubt be expanded in later revisions of the hardware, but it seems that 48 bits is enough for even the largest users today. http://en.wikipedia.org/wiki/X86-64#Virtual_address_space_de... |
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