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Diffstat (limited to 'rand/benches/generators.rs')
-rw-r--r-- | rand/benches/generators.rs | 240 |
1 files changed, 0 insertions, 240 deletions
diff --git a/rand/benches/generators.rs b/rand/benches/generators.rs deleted file mode 100644 index a6e3a42..0000000 --- a/rand/benches/generators.rs +++ /dev/null @@ -1,240 +0,0 @@ -// Copyright 2018 Developers of the Rand project. -// -// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or -// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license -// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your -// option. This file may not be copied, modified, or distributed -// except according to those terms. - -#![feature(test)] - -extern crate test; -extern crate rand; -extern crate rand_isaac; -extern crate rand_chacha; -extern crate rand_hc; -extern crate rand_pcg; -extern crate rand_xorshift; -extern crate rand_xoshiro; - -const RAND_BENCH_N: u64 = 1000; -const BYTES_LEN: usize = 1024; - -use std::mem::size_of; -use test::{black_box, Bencher}; - -use rand::prelude::*; -use rand::rngs::adapter::ReseedingRng; -use rand::rngs::{OsRng, JitterRng, EntropyRng}; -use rand_isaac::{IsaacRng, Isaac64Rng}; -use rand_chacha::ChaChaRng; -use rand_hc::{Hc128Rng, Hc128Core}; -use rand_pcg::{Lcg64Xsh32, Mcg128Xsl64}; -use rand_xorshift::XorShiftRng; -use rand_xoshiro::{Xoshiro256StarStar, Xoshiro256Plus, Xoshiro128StarStar, - Xoshiro128Plus, Xoroshiro128StarStar, Xoroshiro128Plus, SplitMix64, - Xoroshiro64StarStar, Xoroshiro64Star}; - -macro_rules! gen_bytes { - ($fnn:ident, $gen:expr) => { - #[bench] - fn $fnn(b: &mut Bencher) { - let mut rng = $gen; - let mut buf = [0u8; BYTES_LEN]; - b.iter(|| { - for _ in 0..RAND_BENCH_N { - rng.fill_bytes(&mut buf); - black_box(buf); - } - }); - b.bytes = BYTES_LEN as u64 * RAND_BENCH_N; - } - } -} - -gen_bytes!(gen_bytes_xorshift, XorShiftRng::from_entropy()); -gen_bytes!(gen_bytes_xoshiro256starstar, Xoshiro256StarStar::from_entropy()); -gen_bytes!(gen_bytes_xoshiro256plus, Xoshiro256Plus::from_entropy()); -gen_bytes!(gen_bytes_xoshiro128starstar, Xoshiro128StarStar::from_entropy()); -gen_bytes!(gen_bytes_xoshiro128plus, Xoshiro128Plus::from_entropy()); -gen_bytes!(gen_bytes_xoroshiro128starstar, Xoroshiro128StarStar::from_entropy()); -gen_bytes!(gen_bytes_xoroshiro128plus, Xoroshiro128Plus::from_entropy()); -gen_bytes!(gen_bytes_xoroshiro64starstar, Xoroshiro64StarStar::from_entropy()); -gen_bytes!(gen_bytes_xoroshiro64star, Xoroshiro64Star::from_entropy()); -gen_bytes!(gen_bytes_splitmix64, SplitMix64::from_entropy()); -gen_bytes!(gen_bytes_lcg64_xsh32, Lcg64Xsh32::from_entropy()); -gen_bytes!(gen_bytes_mcg128_xsh64, Mcg128Xsl64::from_entropy()); -gen_bytes!(gen_bytes_chacha20, ChaChaRng::from_entropy()); -gen_bytes!(gen_bytes_hc128, Hc128Rng::from_entropy()); -gen_bytes!(gen_bytes_isaac, IsaacRng::from_entropy()); -gen_bytes!(gen_bytes_isaac64, Isaac64Rng::from_entropy()); -gen_bytes!(gen_bytes_std, StdRng::from_entropy()); -gen_bytes!(gen_bytes_small, SmallRng::from_entropy()); -gen_bytes!(gen_bytes_os, OsRng::new().unwrap()); - -macro_rules! gen_uint { - ($fnn:ident, $ty:ty, $gen:expr) => { - #[bench] - fn $fnn(b: &mut Bencher) { - let mut rng = $gen; - b.iter(|| { - let mut accum: $ty = 0; - for _ in 0..RAND_BENCH_N { - accum = accum.wrapping_add(rng.gen::<$ty>()); - } - accum - }); - b.bytes = size_of::<$ty>() as u64 * RAND_BENCH_N; - } - } -} - -gen_uint!(gen_u32_xorshift, u32, XorShiftRng::from_entropy()); -gen_uint!(gen_u32_xoshiro256starstar, u32, Xoshiro256StarStar::from_entropy()); -gen_uint!(gen_u32_xoshiro256plus, u32, Xoshiro256Plus::from_entropy()); -gen_uint!(gen_u32_xoshiro128starstar, u32, Xoshiro128StarStar::from_entropy()); -gen_uint!(gen_u32_xoshiro128plus, u32, Xoshiro128Plus::from_entropy()); -gen_uint!(gen_u32_xoroshiro128starstar, u32, Xoroshiro128StarStar::from_entropy()); -gen_uint!(gen_u32_xoroshiro128plus, u32, Xoroshiro128Plus::from_entropy()); -gen_uint!(gen_u32_xoroshiro64starstar, u32, Xoroshiro64StarStar::from_entropy()); -gen_uint!(gen_u32_xoroshiro64star, u32, Xoroshiro64Star::from_entropy()); -gen_uint!(gen_u32_splitmix64, u32, SplitMix64::from_entropy()); -gen_uint!(gen_u32_lcg64_xsh32, u32, Lcg64Xsh32::from_entropy()); -gen_uint!(gen_u32_mcg128_xsh64, u32, Mcg128Xsl64::from_entropy()); -gen_uint!(gen_u32_chacha20, u32, ChaChaRng::from_entropy()); -gen_uint!(gen_u32_hc128, u32, Hc128Rng::from_entropy()); -gen_uint!(gen_u32_isaac, u32, IsaacRng::from_entropy()); -gen_uint!(gen_u32_isaac64, u32, Isaac64Rng::from_entropy()); -gen_uint!(gen_u32_std, u32, StdRng::from_entropy()); -gen_uint!(gen_u32_small, u32, SmallRng::from_entropy()); -gen_uint!(gen_u32_os, u32, OsRng::new().unwrap()); - -gen_uint!(gen_u64_xorshift, u64, XorShiftRng::from_entropy()); -gen_uint!(gen_u64_xoshiro256starstar, u64, Xoshiro256StarStar::from_entropy()); -gen_uint!(gen_u64_xoshiro256plus, u64, Xoshiro256Plus::from_entropy()); -gen_uint!(gen_u64_xoshiro128starstar, u64, Xoshiro128StarStar::from_entropy()); -gen_uint!(gen_u64_xoshiro128plus, u64, Xoshiro128Plus::from_entropy()); -gen_uint!(gen_u64_xoroshiro128starstar, u64, Xoroshiro128StarStar::from_entropy()); -gen_uint!(gen_u64_xoroshiro128plus, u64, Xoroshiro128Plus::from_entropy()); -gen_uint!(gen_u64_xoroshiro64starstar, u64, Xoroshiro64StarStar::from_entropy()); -gen_uint!(gen_u64_xoroshiro64star, u64, Xoroshiro64Star::from_entropy()); -gen_uint!(gen_u64_splitmix64, u64, SplitMix64::from_entropy()); -gen_uint!(gen_u64_lcg64_xsh32, u64, Lcg64Xsh32::from_entropy()); -gen_uint!(gen_u64_mcg128_xsh64, u64, Mcg128Xsl64::from_entropy()); -gen_uint!(gen_u64_chacha20, u64, ChaChaRng::from_entropy()); -gen_uint!(gen_u64_hc128, u64, Hc128Rng::from_entropy()); -gen_uint!(gen_u64_isaac, u64, IsaacRng::from_entropy()); -gen_uint!(gen_u64_isaac64, u64, Isaac64Rng::from_entropy()); -gen_uint!(gen_u64_std, u64, StdRng::from_entropy()); -gen_uint!(gen_u64_small, u64, SmallRng::from_entropy()); -gen_uint!(gen_u64_os, u64, OsRng::new().unwrap()); - -// Do not test JitterRng like the others by running it RAND_BENCH_N times per, -// measurement, because it is way too slow. Only run it once. -#[bench] -fn gen_u64_jitter(b: &mut Bencher) { - let mut rng = JitterRng::new().unwrap(); - b.iter(|| { - rng.gen::<u64>() - }); - b.bytes = size_of::<u64>() as u64; -} - -macro_rules! init_gen { - ($fnn:ident, $gen:ident) => { - #[bench] - fn $fnn(b: &mut Bencher) { - let mut rng = XorShiftRng::from_entropy(); - b.iter(|| { - let r2 = $gen::from_rng(&mut rng).unwrap(); - r2 - }); - } - } -} - -init_gen!(init_xorshift, XorShiftRng); -init_gen!(init_xoshiro256starstar, Xoshiro256StarStar); -init_gen!(init_xoshiro256plus, Xoshiro256Plus); -init_gen!(init_xoshiro128starstar, Xoshiro128StarStar); -init_gen!(init_xoshiro128plus, Xoshiro128Plus); -init_gen!(init_xoroshiro128starstar, Xoroshiro128StarStar); -init_gen!(init_xoroshiro128plus, Xoroshiro128Plus); -init_gen!(init_xoroshiro64starstar, Xoroshiro64StarStar); -init_gen!(init_xoroshiro64star, Xoroshiro64Star); -init_gen!(init_splitmix64, SplitMix64); -init_gen!(init_lcg64_xsh32, Lcg64Xsh32); -init_gen!(init_mcg128_xsh64, Mcg128Xsl64); -init_gen!(init_hc128, Hc128Rng); -init_gen!(init_isaac, IsaacRng); -init_gen!(init_isaac64, Isaac64Rng); -init_gen!(init_chacha, ChaChaRng); - -#[bench] -fn init_jitter(b: &mut Bencher) { - b.iter(|| { - JitterRng::new().unwrap() - }); -} - - -const RESEEDING_THRESHOLD: u64 = 1024*1024*1024; // something high enough to get - // deterministic measurements - -#[bench] -fn reseeding_hc128_bytes(b: &mut Bencher) { - let mut rng = ReseedingRng::new(Hc128Core::from_entropy(), - RESEEDING_THRESHOLD, - EntropyRng::new()); - let mut buf = [0u8; BYTES_LEN]; - b.iter(|| { - for _ in 0..RAND_BENCH_N { - rng.fill_bytes(&mut buf); - black_box(buf); - } - }); - b.bytes = BYTES_LEN as u64 * RAND_BENCH_N; -} - -macro_rules! reseeding_uint { - ($fnn:ident, $ty:ty) => { - #[bench] - fn $fnn(b: &mut Bencher) { - let mut rng = ReseedingRng::new(Hc128Core::from_entropy(), - RESEEDING_THRESHOLD, - EntropyRng::new()); - b.iter(|| { - let mut accum: $ty = 0; - for _ in 0..RAND_BENCH_N { - accum = accum.wrapping_add(rng.gen::<$ty>()); - } - accum - }); - b.bytes = size_of::<$ty>() as u64 * RAND_BENCH_N; - } - } -} - -reseeding_uint!(reseeding_hc128_u32, u32); -reseeding_uint!(reseeding_hc128_u64, u64); - - -macro_rules! threadrng_uint { - ($fnn:ident, $ty:ty) => { - #[bench] - fn $fnn(b: &mut Bencher) { - let mut rng = thread_rng(); - b.iter(|| { - let mut accum: $ty = 0; - for _ in 0..RAND_BENCH_N { - accum = accum.wrapping_add(rng.gen::<$ty>()); - } - accum - }); - b.bytes = size_of::<$ty>() as u64 * RAND_BENCH_N; - } - } -} - -threadrng_uint!(thread_rng_u32, u32); -threadrng_uint!(thread_rng_u64, u64); |