vks
commented
5 years ago Benchmarks:
test gen_bytes_chacha12 ... bench: 335,135 ns/iter (+/- 5,118) = 3055 MB/s
test gen_bytes_chacha20 ... bench: 504,586 ns/iter (+/- 16,726) = 2029 MB/s
test gen_bytes_chacha8 ... bench: 251,957 ns/iter (+/- 3,463) = 4064 MB/s
test gen_bytes_hc128 ... bench: 462,396 ns/iter (+/- 4,081) = 2214 MB/s
test gen_bytes_isaac ... bench: 718,384 ns/iter (+/- 62,118) = 1425 MB/s
test gen_bytes_isaac64 ... bench: 385,250 ns/iter (+/- 8,200) = 2658 MB/s
test gen_bytes_lcg64_xsh32 ... bench: 617,052 ns/iter (+/- 33,270) = 1659 MB/s
test gen_bytes_mcg128_xsh64 ... bench: 323,854 ns/iter (+/- 7,361) = 3161 MB/s
test gen_bytes_os ... bench: 61,325,527 ns/iter (+/- 1,325,821) = 16 MB/s
test gen_bytes_small ... bench: 325,099 ns/iter (+/- 32,972) = 3149 MB/s
test gen_bytes_splitmix64 ... bench: 233,722 ns/iter (+/- 14,390) = 4381 MB/s
test gen_bytes_std ... bench: 464,099 ns/iter (+/- 6,304) = 2206 MB/s
test gen_bytes_xoroshiro128plus ... bench: 329,572 ns/iter (+/- 15,344) = 3107 MB/s
test gen_bytes_xoroshiro128starstar ... bench: 330,224 ns/iter (+/- 4,924) = 3100 MB/s
test gen_bytes_xoroshiro64star ... bench: 508,351 ns/iter (+/- 11,159) = 2014 MB/s
test gen_bytes_xoroshiro64starstar ... bench: 522,536 ns/iter (+/- 9,524) = 1959 MB/s
test gen_bytes_xorshift ... bench: 368,437 ns/iter (+/- 4,574) = 2779 MB/s
test gen_bytes_xoshiro128plus ... bench: 463,197 ns/iter (+/- 29,034) = 2210 MB/s
test gen_bytes_xoshiro128starstar ... bench: 462,240 ns/iter (+/- 6,285) = 2215 MB/s
test gen_bytes_xoshiro256plus ... bench: 357,846 ns/iter (+/- 11,615) = 2861 MB/s
test gen_bytes_xoshiro256starstar ... bench: 346,764 ns/iter (+/- 6,309) = 2953 MB/s
test gen_u64_chacha12 ... bench: 4,414 ns/iter (+/- 447) = 1812 MB/s
test gen_u64_chacha20 ... bench: 5,602 ns/iter (+/- 410) = 1428 MB/s
test gen_u64_chacha8 ... bench: 3,505 ns/iter (+/- 174) = 2282 MB/s
test gen_u64_hc128 ... bench: 3,693 ns/iter (+/- 247) = 2166 MB/s
test gen_u64_isaac ... bench: 6,967 ns/iter (+/- 376) = 1148 MB/s
test gen_u64_isaac64 ... bench: 3,583 ns/iter (+/- 150) = 2232 MB/s
test gen_u64_lcg64_xsh32 ... bench: 2,445 ns/iter (+/- 146) = 3271 MB/s
test gen_u64_mcg128_xsh64 ... bench: 1,573 ns/iter (+/- 107) = 5085 MB/s
test gen_u64_os ... bench: 874,107 ns/iter (+/- 127,534) = 9 MB/s
test gen_u64_small ... bench: 1,552 ns/iter (+/- 47) = 5154 MB/s
test gen_u64_splitmix64 ... bench: 982 ns/iter (+/- 27) = 8146 MB/s
test gen_u64_std ... bench: 3,684 ns/iter (+/- 63) = 2171 MB/s
test gen_u64_xoroshiro128plus ... bench: 1,104 ns/iter (+/- 25) = 7246 MB/s
test gen_u64_xoroshiro128starstar ... bench: 1,243 ns/iter (+/- 33) = 6436 MB/s
test gen_u64_xoroshiro64star ... bench: 2,902 ns/iter (+/- 52) = 2756 MB/s
test gen_u64_xoroshiro64starstar ... bench: 3,109 ns/iter (+/- 74) = 2573 MB/s
test gen_u64_xorshift ... bench: 1,558 ns/iter (+/- 24) = 5134 MB/s
test gen_u64_xoshiro128plus ... bench: 1,607 ns/iter (+/- 69) = 4978 MB/s
test gen_u64_xoshiro128starstar ... bench: 1,910 ns/iter (+/- 58) = 4188 MB/s
test gen_u64_xoshiro256plus ... bench: 839 ns/iter (+/- 43) = 9535 MB/s
test gen_u64_xoshiro256starstar ... bench: 934 ns/iter (+/- 30) = 8565 MB/s(It's a bit fishy that for some generators the MB/s for gen_u64 is higher than for gen_bytes.)
This is an interesting alternative to the non-CSPRNGs, since it is about as fast/faster than many of them.