Can I limit number of threads to use in benchmark?

[Crispy13]

It seems that criterion uses all threads available.

Can I limit it? I must use a part of resources in server.

[Crispy13]

Solved it with a dummy funtion

fn set_thread_pool(c: &mut Criterion) {
    static ONCE:Once  = Once::new();
    ONCE.call_once(|| 
        rayon::ThreadPoolBuilder::new().num_threads(4).build().unwrap()
    );
}

criterion_group!(benches, set_thread_pool, ...)
...