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#[macro_use]
extern crate criterion;
extern crate typed_arena_nomut;
use criterion::{Criterion, BenchmarkId};
#[derive(Default)]
struct Small(usize);
#[derive(Default)]
struct Big([usize; 32]);
fn allocate<T: Default>(n: usize) {
let arena = typed_arena_nomut::Arena::new();
for _ in 0..n {
let val: &T = arena.alloc(Default::default());
criterion::black_box(val);
}
}
fn criterion_benchmark(c: &mut Criterion) {
let mut group = c.benchmark_group("allocate");
for n in 1..5 {
let n = n * 1000;
group.throughput(criterion::Throughput::Elements(n as u64));
group.bench_with_input(
BenchmarkId::new("allocate-small", n),
&n,
|b, &n| b.iter(|| allocate::<Small>(n)),
);
group.bench_with_input(
BenchmarkId::new("allocate-big", n),
&n,
|b, &n| b.iter(|| allocate::<Big>(n)),
);
}
}
criterion_group!(benches, criterion_benchmark);
criterion_main!(benches);