3 ms·
It has on-die ECC _because_ it is so unreliable. ECC is there to fix its terribleness from factory.
by rasz 11mo ago
It has on-die ECC _because_ it is so unreliable. ECC is there to fix its terribleness from factory.
- Aurornis 11mo agoSo? If the net result is more reliable memory, it doesn't matter. Many things in electrical engineering use ECC on top of less reliable processes to produce a net result that is more reliable on the whole. Everything from hard drives to wireless communication. It's normal.
- rasz 11mo agoECC doesnt completely fix it, it only masks problems for most common use patterns. Rowhammer is a huge problem.
- ahartmetz 11mo agoJust like increasing the structure size "only" decreases the likelihood of bit flips. Correcting physical unreliability with more logic may feel flimsy, but in the end, probabilities are probabilities.