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#[macro_use]
extern crate criterion;
extern crate typed_arena;
use criterion::{BenchmarkId, Criterion};
#[derive(Default)]
struct Small(usize);
#[derive(Default)]
struct Big([usize; 32]);
fn allocate<T: Default>(n: usize) {
let arena = typed_arena::Arena::new();
for _ in 0..n {
let val: &mut 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);
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