How often do you reseed? How frequently does the kernel populate these pages with new entropy (for every process, pre-emptively?) Does this avoid pagefaults o

How often do you reseed? How frequently does the kernel populate these pages with new entropy (for every process, pre-emptively?) Does this avoid pagefaults or other process interrupts? Don't want process interrupting every time it accesses the 'magic page of random'. Surely these are all pain points that Intel's `RDRAND` is supposed to alleviate.