5 ms·
Fun fact: physical addresses will still have at most 52 bits, despite linear address space having up to 57.
by rdmsr 10y ago
Fun fact: physical addresses will still have at most 52 bits, despite linear address space having up to 57.
- ChuckMcM 10y agoAnd that is a huge improvement from the old 40 bit limit, and then the 42 bit limit. In fact it is over 1000x better than the 52 bit limit :-)
- Symmetry 10y agoFor garbage collectors and other things you really want a randomly selected number to only infrequently be a valid address.
- tedunangst 10y agoHow often do garbage collectors look at physical addresses?
- Symmetry 10y ago... You're right, physical address bits are totally irrelevant and I was confused.
- bogomipz 10y agoI'm guessing this is tradeoff of practical vs possible?