You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
44 lines
1.1 KiB
44 lines
1.1 KiB
use criterion::{black_box, criterion_group, criterion_main, Criterion};
|
|
use itertools::Itertools;
|
|
|
|
// Keep aggregate generated elements the same, regardless of powerset length.
|
|
const TOTAL_ELEMENTS: usize = 1 << 12;
|
|
const fn calc_iters(n: usize) -> usize {
|
|
TOTAL_ELEMENTS / (1 << n)
|
|
}
|
|
|
|
fn powerset_n(c: &mut Criterion, n: usize) {
|
|
let id = format!("powerset {}", n);
|
|
c.bench_function(id.as_str(), move |b| {
|
|
b.iter(|| {
|
|
for _ in 0..calc_iters(n) {
|
|
for elt in (0..n).powerset() {
|
|
black_box(elt);
|
|
}
|
|
}
|
|
})
|
|
});
|
|
}
|
|
|
|
fn powerset_0(c: &mut Criterion) { powerset_n(c, 0); }
|
|
|
|
fn powerset_1(c: &mut Criterion) { powerset_n(c, 1); }
|
|
|
|
fn powerset_2(c: &mut Criterion) { powerset_n(c, 2); }
|
|
|
|
fn powerset_4(c: &mut Criterion) { powerset_n(c, 4); }
|
|
|
|
fn powerset_8(c: &mut Criterion) { powerset_n(c, 8); }
|
|
|
|
fn powerset_12(c: &mut Criterion) { powerset_n(c, 12); }
|
|
|
|
criterion_group!(
|
|
benches,
|
|
powerset_0,
|
|
powerset_1,
|
|
powerset_2,
|
|
powerset_4,
|
|
powerset_8,
|
|
powerset_12,
|
|
);
|
|
criterion_main!(benches); |