This library provides methods for getting the percentage of cpu time spent idle, a.k.a. cpu usage.

It follows the structure of std::time, since you can only work with a difference between 2 fixed points in time. Cpu usage and a specific instant is either 0 or 1 (per core), the value of interest is the proportion of cpu cycles spent not idle over a given period.

Examples

```rust extern crate cpu_monitor;

use std::io; use std::time::Duration;

use cpu_monitor::CpuInstant;

fn main() -> Result<(), io::Error> { let start = CpuInstant::now()?; std::thread::sleep(Duration::frommillis(100)); let end = CpuInstant::now()?; let duration = end - start; println!("cpu: {:.0}%", duration.nonidle() * 100.); Ok(()) } ```