pyo3/benches/bench_pyobject.rs

use criterion::{criterion_group, criterion_main, Bencher, Criterion};

use pyo3::prelude::*;

fn drop_many_objects(b: &mut Bencher) {
    let gil = Python::acquire_gil();
    let py = gil.python();
    b.iter(|| {
        for _ in 0..1000 {
            std::mem::drop(py.None());
        }
    });
}

fn criterion_benchmark(c: &mut Criterion) {
    c.bench_function("drop_many_objects", drop_many_objects);
}

criterion_group!(benches, criterion_benchmark);
criterion_main!(benches);