plonky2/system_zero/benches/lookup_permuted_cols.rs
Daniel Lubarov 3346d3f902
field_types -> types (#583)
* `field_types` -> `types`

Here too, I think "field" is usually clear from context, e.g. in `use plonky2::field::types::Field;`.

* fixes

* fmt
2022-06-27 12:24:09 -07:00

33 lines
1.2 KiB
Rust

mod allocator;
use criterion::{criterion_group, criterion_main, BenchmarkId, Criterion};
use itertools::Itertools;
use plonky2::field::goldilocks_field::GoldilocksField;
use plonky2::field::types::Field;
use rand::{thread_rng, Rng};
use system_zero::lookup::permuted_cols;
type F = GoldilocksField;
fn criterion_benchmark(c: &mut Criterion) {
let mut group = c.benchmark_group("lookup-permuted-cols");
for size_log in [16, 17, 18] {
let size = 1 << size_log;
group.bench_with_input(BenchmarkId::from_parameter(size), &size, |b, _| {
// We could benchmark a table of random values with
// let table = F::rand_vec(size);
// But in practice we currently use tables that are pre-sorted, which makes
// permuted_cols cheaper since it will sort the table.
let table = (0..size).map(F::from_canonical_usize).collect_vec();
let input = (0..size)
.map(|_| table[thread_rng().gen_range(0..size)])
.collect_vec();
b.iter(|| permuted_cols(&input, &table));
});
}
}
criterion_group!(benches, criterion_benchmark);
criterion_main!(benches);