2 ms·
Thanks: I guess we've moved away from true sources of entropy for RNG and it's mostly pseudo-RNGs seeded by truly random numbers if we can achieve such performa
by necovek 2y ago
Thanks: I guess we've moved away from true sources of entropy for RNG and it's mostly pseudo-RNGs seeded by truly random numbers if we can achieve such performance today.
I've done a quick benchmark of /dev/urandom locally, and I get ~450 MB/s out, which is roughly 28M worth of UUIDs per second — on my Ryzen 6850U laptop. Even that amounts to sub-microsecond times.
I distinctly remember a time where you could only get a few MB/s, and external sources of true entropy were outright expensive for anything more than a few KB/s.