criterion 0.6.0

Statistics-driven micro-benchmarking library
Documentation 
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use criterion::{criterion_group, Criterion};

const SIZE: usize = 1024 * 1024;

fn setup(c: &mut Criterion) {
    c.bench_function("iter_with_setup", |b| {
        b.iter_with_setup(|| (0..SIZE).map(|i| i as u8).collect::<Vec<_>>(), |v| v);
    });
}

criterion_group!(benches, setup);