#![feature(test)] extern crate pcg_rand; extern crate rand; extern crate test; use pcg_rand::{Pcg32L, Pcg32LFast}; use rand::{RngCore, SeedableRng}; use test::Bencher; #[bench] fn pcg32l_next_u32(b: &mut Bencher) { let mut rng = Pcg32L::from_entropy(); b.iter(|| rng.next_u32()) } #[bench] fn pcg32l_fill_bytes(b: &mut Bencher) { b.bytes = 1024 * 1024; let mut rng = Pcg32L::from_entropy(); let mut x = vec![0; b.bytes as usize]; b.iter(|| rng.fill_bytes(x.as_mut_slice())) } #[bench] fn pcg32lfast_next_u32(b: &mut Bencher) { let mut rng = Pcg32LFast::from_entropy(); b.iter(|| rng.next_u32()) } #[bench] fn pcg32lfast_fill_bytes(b: &mut Bencher) { b.bytes = 1024 * 1024; let mut rng = Pcg32LFast::from_entropy(); let mut x = vec![0; b.bytes as usize]; b.iter(|| rng.fill_bytes(x.as_mut_slice())) }