4 ms·

Zeroing memory on boot is pretty slow. Modern CPUs support encrypting the RAM with a key generated at boot and lost when the processor powers off. This would

Zeroing memory on boot is pretty slow. Modern CPUs support encrypting the RAM with a key generated at boot and lost when the processor powers off. This would give even better security under most circumstances, without the slow boot.

alfiedotwtf 4mo ago
Wow, that sounds quite slow? I wonder what speed boosts you could get if you disable this if this is not an attack vector you want to cover
- dlcarrier 4mo ago
  It's done transparently in hardware, so it doesn't slow down the RAM.
  - Retr0id 4mo ago
    It usually has a latency cost, but it's not much.
Retr0id 4mo ago
If you have 256GB/s of memory bandwidth and 64GB of RAM, you can zero it all in 250ms.