Stable Rust Benchmarker

bencher.rs

fn bencher(name: &str, iter: u32, f: fn() -> ()) {
    let mut avg_time: u128 = 0;
    for i in 0..iter {
        let start = std::time::Instant::now();
        f();
        avg_time += start.elapsed().as_nanos();
    }
    println!("[*] Bench: {} ({})", name, iter);
    println!(" ├─ Total: {}ns", avg_time);
    println!(" └─ AVG: {}ns\n", avg_time / iter as u128);
}

// Useage
bencher("Do random stuff", 1000, || {
    let mut a = 1;
    for i in 0..100 {
        a *= 2;
    }
});

// Output
// [*] Bench: Do random stuff (1000)
//  ├─ Total: 33156ns
//  └─ AVG: 33ns