40 lines
1.1 KiB
Rust
40 lines
1.1 KiB
Rust
#![cfg_attr(feature = "cargo-clippy", allow(float_cmp, map_clone))]
|
|
|
|
use bencher::{Bencher, benchmark_group, benchmark_main};
|
|
|
|
/// Create a random vector of random floats in [0, 1].
|
|
fn initialize_vec() -> Vec<f64> {
|
|
use rand_distr::{Uniform, Distribution};
|
|
use rand::SeedableRng;
|
|
let range = Uniform::new(0.0, 1.0);
|
|
let n = 1_000_000;
|
|
let mut values = Vec::with_capacity(n);
|
|
let mut rng = rand_xoshiro::Xoshiro256StarStar::from_seed(
|
|
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
|
|
17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32]);
|
|
for _ in 0..n {
|
|
values.push(range.sample(&mut rng));
|
|
}
|
|
values
|
|
}
|
|
|
|
fn bench_average(b: &mut Bencher) {
|
|
let values = initialize_vec();
|
|
b.iter(|| {
|
|
let a: average::Min = values.iter().map(|x| *x).collect();
|
|
a
|
|
});
|
|
}
|
|
|
|
fn bench_iter(b: &mut Bencher) {
|
|
let values = initialize_vec();
|
|
b.iter(|| {
|
|
let mut it = values.iter();
|
|
let init: f64 = *it.next().unwrap();
|
|
it.fold(init, |a, &b| a.min(b))
|
|
});
|
|
}
|
|
|
|
benchmark_group!(benches, bench_average, bench_iter);
|
|
benchmark_main!(benches);
|