microbench

Documentation

A micro-benchmarking library.

Inspired by core_bench.

Released under the Apache License 2.0.

Example

use std::time::{Duration};
use microbench::{self, Options};

fn fibonacci_iterative(n: u64) -> u64 {
    let (mut x, mut y, mut z) = (0, 1, 1);
    for _ in 0..n { x = y; y = z; z = x + y; }
    x
}

fn fibonacci_recursive(n: u64) -> u64 {
    if n < 2 {
        n
    } else {
        fibonacci_recursive(n - 2) + fibonacci_recursive(n - 1)
    }
}

let options = Options::default().maximum(Duration::new(1, 0));
microbench::bench(&options, "iterative_16", || fibonacci_iterative(16));
microbench::bench(&options, "recursive_16", || fibonacci_recursive(16));

Example output:

iterative_16 ... bench:          284.161 ns/iter (1.000 R²)
recursive_16 ... bench:          9222.037 ns/iter (1.000 R²)