[dlcarrier]

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]

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]

It's done transparently in hardware, so it doesn't slow down the RAM.

[Retr0id]

It usually has a latency cost, but it's not much.

[Retr0id]

If you have 256GB/s of memory bandwidth and 64GB of RAM, you can zero it all in 250ms.