1 #![feature(test)]
2
3 extern crate test;
4 extern crate rand;
5
6 use test::{black_box, Bencher};
7
8 use rand::{Rng, weak_rng};
9 use rand::seq::*;
10
11 #[bench]
misc_shuffle_100(b: &mut Bencher)12 fn misc_shuffle_100(b: &mut Bencher) {
13 let mut rng = weak_rng();
14 let x : &mut [usize] = &mut [1; 100];
15 b.iter(|| {
16 rng.shuffle(x);
17 black_box(&x);
18 })
19 }
20
21 #[bench]
misc_sample_iter_10_of_100(b: &mut Bencher)22 fn misc_sample_iter_10_of_100(b: &mut Bencher) {
23 let mut rng = weak_rng();
24 let x : &[usize] = &[1; 100];
25 b.iter(|| {
26 black_box(sample_iter(&mut rng, x, 10).unwrap_or_else(|e| e));
27 })
28 }
29
30 #[bench]
misc_sample_slice_10_of_100(b: &mut Bencher)31 fn misc_sample_slice_10_of_100(b: &mut Bencher) {
32 let mut rng = weak_rng();
33 let x : &[usize] = &[1; 100];
34 b.iter(|| {
35 black_box(sample_slice(&mut rng, x, 10));
36 })
37 }
38
39 #[bench]
misc_sample_slice_ref_10_of_100(b: &mut Bencher)40 fn misc_sample_slice_ref_10_of_100(b: &mut Bencher) {
41 let mut rng = weak_rng();
42 let x : &[usize] = &[1; 100];
43 b.iter(|| {
44 black_box(sample_slice_ref(&mut rng, x, 10));
45 })
46 }
47
48 macro_rules! sample_indices {
49 ($name:ident, $amount:expr, $length:expr) => {
50 #[bench]
51 fn $name(b: &mut Bencher) {
52 let mut rng = weak_rng();
53 b.iter(|| {
54 black_box(sample_indices(&mut rng, $length, $amount));
55 })
56 }
57 }
58 }
59
60 sample_indices!(misc_sample_indices_10_of_1k, 10, 1000);
61 sample_indices!(misc_sample_indices_50_of_1k, 50, 1000);
62 sample_indices!(misc_sample_indices_100_of_1k, 100, 1000);
63