perf-event2 0.7.4

A Rust interface to Linux performance monitoring
Documentation 
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use perf_event::events::Hardware;
use perf_event::Builder;

fn main() -> std::io::Result<()> {
    let mut counter = Builder::new(Hardware::INSTRUCTIONS).build()?;

    let vec = (0..=51).collect::<Vec<_>>();

    counter.enable()?;
    println!("{:?}", vec);
    counter.disable()?;

    println!("{} instructions retired", counter.read()?);

    Ok(())
}