aboutsummaryrefslogtreecommitdiff
path: root/rand/benches/generators.rs
diff options
context:
space:
mode:
Diffstat (limited to 'rand/benches/generators.rs')
-rw-r--r--rand/benches/generators.rs240
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);
generated by cgit v1.2.1 (git 2.18.0) at 2024-05-03 21:29:15 +0000