17 lines
402 B
Rust
17 lines
402 B
Rust
use criterion::{black_box, criterion_group, criterion_main, Criterion};
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fn fibonacci(n: u64) -> u64 {
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match n {
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0 => 1,
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1 => 1,
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n => fibonacci(n - 1) + fibonacci(n - 2),
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}
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}
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fn criterion_benchmark(c: &mut Criterion) {
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c.bench_function("fib 20", |b| b.iter(|| fibonacci(black_box(20))));
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}
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criterion_group!(benches, criterion_benchmark);
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criterion_main!(benches);
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