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#![feature(test)]
extern crate test;
extern crate rand;
use test::{black_box, Bencher};
use rand::{Rng, weak_rng};
use rand::seq::*;
#[bench]
fn misc_shuffle_100(b: &mut Bencher) {
let mut rng = weak_rng();
let x : &mut [usize] = &mut [1; 100];
b.iter(|| {
rng.shuffle(x);
black_box(&x);
})
}
#[bench]
fn misc_sample_iter_10_of_100(b: &mut Bencher) {
let mut rng = weak_rng();
let x : &[usize] = &[1; 100];
b.iter(|| {
black_box(sample_iter(&mut rng, x, 10).unwrap_or_else(|e| e));
})
}
#[bench]
fn misc_sample_slice_10_of_100(b: &mut Bencher) {
let mut rng = weak_rng();
let x : &[usize] = &[1; 100];
b.iter(|| {
black_box(sample_slice(&mut rng, x, 10));
})
}
#[bench]
fn misc_sample_slice_ref_10_of_100(b: &mut Bencher) {
let mut rng = weak_rng();
let x : &[usize] = &[1; 100];
b.iter(|| {
black_box(sample_slice_ref(&mut rng, x, 10));
})
}
macro_rules! sample_indices {
($name:ident, $amount:expr, $length:expr) => {
#[bench]
fn $name(b: &mut Bencher) {
let mut rng = weak_rng();
b.iter(|| {
black_box(sample_indices(&mut rng, $length, $amount));
})
}
}
}
sample_indices!(misc_sample_indices_10_of_1k, 10, 1000);
sample_indices!(misc_sample_indices_50_of_1k, 50, 1000);
sample_indices!(misc_sample_indices_100_of_1k, 100, 1000);
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