Crate criterion_perf_events

Perf measures the selected perf events using the perf interface of the Linux kernel.

Example

extern crate criterion_perf_events;
extern crate perfcnt;


use criterion::{criterion_group, criterion_main, BenchmarkId, Criterion};
use criterion_perf_events::Perf;
use perfcnt::linux::HardwareEventType as Hardware;
use perfcnt::linux::PerfCounterBuilderLinux as Builder;

fn bench(c: &mut Criterion<Perf>) {
    let mut group = c.benchmark_group("fibonacci");

    for i in 0..20 {
        group.bench_function(BenchmarkId::new("slow", i), |b| b.iter(|| fibonacci_slow(i)));
        group.bench_function(BenchmarkId::new("fast", i), |b| b.iter(|| fibonacci_fast(i)));
    }

    group.finish()
}

criterion_group!(
    name = my_bench;
    config = Criterion::default().with_measurement(Perf::new(Builder::from_hardware_event(Hardware::CacheMisses)));
    targets = bench
);
criterion_main!(my_bench);

Structs

Perf

perf implements criterion::measurement::Measurement so it can be used in criterion to measure perf events. Create a struct via Perf::new().