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// Copyright © 2023-2025 Andrea Corbellini and contributors
// SPDX-License-Identifier: BSD-3-Clause
use circular_buffer::CircularBuffer;
use criterion::criterion_group;
use criterion::criterion_main;
use criterion::measurement::Measurement;
use criterion::BenchmarkGroup;
use criterion::Criterion;
use criterion::Throughput;
fn bench_push(c: &mut Criterion) {
let mut group = c.benchmark_group("push");
fn do_bench<M: Measurement, const N: usize>(
group: &mut BenchmarkGroup<'_, M>,
buf: &mut CircularBuffer<N, u32>,
) {
group.throughput(Throughput::Elements(N as u64));
group.bench_function("push_back", |b| {
b.iter(|| {
buf.push_back(1);
})
});
group.bench_function("push_front", |b| {
b.iter(|| {
buf.push_front(1);
})
});
}
do_bench(&mut group, &mut CircularBuffer::<10, u32>::new());
do_bench(&mut group, &mut CircularBuffer::<100, u32>::new());
#[cfg(feature = "std")]
do_bench(&mut group, &mut CircularBuffer::<1000, u32>::boxed());
group.finish();
}
fn bench_pop(c: &mut Criterion) {
let mut group = c.benchmark_group("pop");
fn do_bench<M: Measurement, const N: usize>(
group: &mut BenchmarkGroup<'_, M>,
buf: &mut CircularBuffer<N, u32>,
) {
buf.fill(0);
group.throughput(Throughput::Elements(N as u64));
group.bench_function("pop_back", |b| {
b.iter(|| {
let mut buf = buf.clone();
for _ in 0..buf.capacity() {
buf.pop_back();
}
})
});
group.bench_function("pop_front", |b| {
b.iter(|| {
let mut buf = buf.clone();
for _ in 0..buf.capacity() {
buf.pop_front();
}
})
});
}
do_bench(&mut group, &mut CircularBuffer::<10, u32>::new());
do_bench(&mut group, &mut CircularBuffer::<100, u32>::new());
#[cfg(feature = "std")]
do_bench(&mut group, &mut CircularBuffer::<1000, u32>::boxed());
group.finish();
}
criterion_group!(benches, bench_push, bench_pop);
criterion_main!(benches);
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