summaryrefslogtreecommitdiff
path: root/rand/benches/misc.rs
diff options
context:
space:
mode:
Diffstat (limited to 'rand/benches/misc.rs')
-rw-r--r--rand/benches/misc.rs140
1 files changed, 0 insertions, 140 deletions
diff --git a/rand/benches/misc.rs b/rand/benches/misc.rs
deleted file mode 100644
index 4098686..0000000
--- a/rand/benches/misc.rs
+++ /dev/null
@@ -1,140 +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;
-
-const RAND_BENCH_N: u64 = 1000;
-
-use test::Bencher;
-
-use rand::prelude::*;
-use rand::distributions::{Distribution, Standard, Bernoulli};
-use rand_pcg::{Pcg32, Pcg64Mcg};
-
-#[bench]
-fn misc_gen_bool_const(b: &mut Bencher) {
- let mut rng = Pcg32::from_rng(&mut thread_rng()).unwrap();
- b.iter(|| {
- let mut accum = true;
- for _ in 0..crate::RAND_BENCH_N {
- accum ^= rng.gen_bool(0.18);
- }
- accum
- })
-}
-
-#[bench]
-fn misc_gen_bool_var(b: &mut Bencher) {
- let mut rng = Pcg32::from_rng(&mut thread_rng()).unwrap();
- b.iter(|| {
- let mut accum = true;
- let mut p = 0.18;
- for _ in 0..crate::RAND_BENCH_N {
- accum ^= rng.gen_bool(p);
- p += 0.0001;
- }
- accum
- })
-}
-
-#[bench]
-fn misc_gen_ratio_const(b: &mut Bencher) {
- let mut rng = Pcg32::from_rng(&mut thread_rng()).unwrap();
- b.iter(|| {
- let mut accum = true;
- for _ in 0..crate::RAND_BENCH_N {
- accum ^= rng.gen_ratio(2, 3);
- }
- accum
- })
-}
-
-#[bench]
-fn misc_gen_ratio_var(b: &mut Bencher) {
- let mut rng = Pcg32::from_rng(&mut thread_rng()).unwrap();
- b.iter(|| {
- let mut accum = true;
- for i in 2..(crate::RAND_BENCH_N as u32 + 2) {
- accum ^= rng.gen_ratio(i, i + 1);
- }
- accum
- })
-}
-
-#[bench]
-fn misc_bernoulli_const(b: &mut Bencher) {
- let mut rng = Pcg32::from_rng(&mut thread_rng()).unwrap();
- b.iter(|| {
- let d = rand::distributions::Bernoulli::new(0.18).unwrap();
- let mut accum = true;
- for _ in 0..crate::RAND_BENCH_N {
- accum ^= rng.sample(d);
- }
- accum
- })
-}
-
-#[bench]
-fn misc_bernoulli_var(b: &mut Bencher) {
- let mut rng = Pcg32::from_rng(&mut thread_rng()).unwrap();
- b.iter(|| {
- let mut accum = true;
- let mut p = 0.18;
- for _ in 0..crate::RAND_BENCH_N {
- let d = Bernoulli::new(p).unwrap();
- accum ^= rng.sample(d);
- p += 0.0001;
- }
- accum
- })
-}
-
-#[bench]
-fn gen_1k_iter_repeat(b: &mut Bencher) {
- use std::iter;
- let mut rng = Pcg64Mcg::from_rng(&mut thread_rng()).unwrap();
- b.iter(|| {
- let v: Vec<u64> = iter::repeat(()).map(|()| rng.gen()).take(128).collect();
- v
- });
- b.bytes = 1024;
-}
-
-#[bench]
-fn gen_1k_sample_iter(b: &mut Bencher) {
- let mut rng = Pcg64Mcg::from_rng(&mut thread_rng()).unwrap();
- b.iter(|| {
- let v: Vec<u64> = Standard.sample_iter(&mut rng).take(128).collect();
- v
- });
- b.bytes = 1024;
-}
-
-#[bench]
-fn gen_1k_gen_array(b: &mut Bencher) {
- let mut rng = Pcg64Mcg::from_rng(&mut thread_rng()).unwrap();
- b.iter(|| {
- // max supported array length is 32!
- let v: [[u64; 32]; 4] = rng.gen();
- v
- });
- b.bytes = 1024;
-}
-
-#[bench]
-fn gen_1k_fill(b: &mut Bencher) {
- let mut rng = Pcg64Mcg::from_rng(&mut thread_rng()).unwrap();
- let mut buf = [0u64; 128];
- b.iter(|| {
- rng.fill(&mut buf[..]);
- buf
- });
- b.bytes = 1024;
-}