PCG – A Family of Better Random Number Generators

The author does not indicate what sort of target the benchmarks were run on, but for comparison ChaCha20&#x2F;8 which is a more modern secure PRNG compared to the arcfour that they show runs about 10Gb&#x2F;s on modern hardware.<p>ChaCha20&#x2F;20 is a more conservative choice (i.e. there are classes of attacks on ChaCha20&#x2F;8 that would be infeasible against ChaCha20&#x2F;20) but runs somewhere between 1&#x2F;3 and 1&#x2F;2 the speed of 20&#x2F;8.

I&#x27;d like to see more substantiation than the guy&#x27;s own site. The PCG &quot;family&quot; is omitted from every graph that I saw. Also, from my own testing, Mersenne Twister appears to have enough randomness for non-cryptographic purposes. I&#x27;ve never had particularly predictable sequences from it.

Apparently, both the Mersenne Twister and XorShift (which seem to be two of the popular RNGs people use these days) can&#x27;t pass all statistical tests. (The Mersenne Twister is pretty huge as well.)