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|
use bencher::{black_box, Bencher};
use tokio::sync::mpsc;
type Medium = [usize; 64];
type Large = [Medium; 64];
fn rt() -> tokio::runtime::Runtime {
tokio::runtime::Builder::new_multi_thread()
.worker_threads(6)
.build()
.unwrap()
}
fn create_1_medium(b: &mut Bencher) {
b.iter(|| {
black_box(&mpsc::channel::<Medium>(1));
});
}
fn create_100_medium(b: &mut Bencher) {
b.iter(|| {
black_box(&mpsc::channel::<Medium>(100));
});
}
fn create_100_000_medium(b: &mut Bencher) {
b.iter(|| {
black_box(&mpsc::channel::<Medium>(100_000));
});
}
fn send_medium(b: &mut Bencher) {
b.iter(|| {
let (tx, mut rx) = mpsc::channel::<Medium>(1000);
let _ = tx.try_send([0; 64]);
rx.try_recv().unwrap();
});
}
fn send_large(b: &mut Bencher) {
b.iter(|| {
let (tx, mut rx) = mpsc::channel::<Large>(1000);
let _ = tx.try_send([[0; 64]; 64]);
rx.try_recv().unwrap();
});
}
fn contention_bounded(b: &mut Bencher) {
let rt = rt();
b.iter(|| {
rt.block_on(async move {
let (tx, mut rx) = mpsc::channel::<usize>(1_000_000);
for _ in 0..5 {
let tx = tx.clone();
tokio::spawn(async move {
for i in 0..1000 {
tx.send(i).await.unwrap();
}
});
}
for _ in 0..1_000 * 5 {
let _ = rx.recv().await;
}
})
});
}
fn contention_bounded_full(b: &mut Bencher) {
let rt = rt();
b.iter(|| {
rt.block_on(async move {
let (tx, mut rx) = mpsc::channel::<usize>(100);
for _ in 0..5 {
let tx = tx.clone();
tokio::spawn(async move {
for i in 0..1000 {
tx.send(i).await.unwrap();
}
});
}
for _ in 0..1_000 * 5 {
let _ = rx.recv().await;
}
})
});
}
fn contention_unbounded(b: &mut Bencher) {
let rt = rt();
b.iter(|| {
rt.block_on(async move {
let (tx, mut rx) = mpsc::unbounded_channel::<usize>();
for _ in 0..5 {
let tx = tx.clone();
tokio::spawn(async move {
for i in 0..1000 {
tx.send(i).unwrap();
}
});
}
for _ in 0..1_000 * 5 {
let _ = rx.recv().await;
}
})
});
}
fn uncontented_bounded(b: &mut Bencher) {
let rt = rt();
b.iter(|| {
rt.block_on(async move {
let (tx, mut rx) = mpsc::channel::<usize>(1_000_000);
for i in 0..5000 {
tx.send(i).await.unwrap();
}
for _ in 0..5_000 {
let _ = rx.recv().await;
}
})
});
}
fn uncontented_unbounded(b: &mut Bencher) {
let rt = rt();
b.iter(|| {
rt.block_on(async move {
let (tx, mut rx) = mpsc::unbounded_channel::<usize>();
for i in 0..5000 {
tx.send(i).unwrap();
}
for _ in 0..5_000 {
let _ = rx.recv().await;
}
})
});
}
bencher::benchmark_group!(
create,
create_1_medium,
create_100_medium,
create_100_000_medium
);
bencher::benchmark_group!(send, send_medium, send_large);
bencher::benchmark_group!(
contention,
contention_bounded,
contention_bounded_full,
contention_unbounded,
uncontented_bounded,
uncontented_unbounded
);
bencher::benchmark_main!(create, send, contention);
|
