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-rw-r--r--vendor/flume/benches/basic.rs474
1 files changed, 474 insertions, 0 deletions
diff --git a/vendor/flume/benches/basic.rs b/vendor/flume/benches/basic.rs
new file mode 100644
index 0000000..bbc4fc2
--- /dev/null
+++ b/vendor/flume/benches/basic.rs
@@ -0,0 +1,474 @@
+#[macro_use]
+extern crate criterion;
+
+use std::{
+ sync::mpsc,
+ thread,
+ fmt::Debug,
+};
+use criterion::{Criterion, Bencher, black_box};
+use std::time::Instant;
+
+trait Sender: Clone + Send + Sized + 'static {
+ type Item: Debug + Default;
+ type BoundedSender: Sender<Item=Self::Item>;
+ type Receiver: Receiver<Item=Self::Item>;
+
+ fn unbounded() -> (Self, Self::Receiver);
+ fn bounded(n: usize) -> (Self::BoundedSender, Self::Receiver);
+ fn send(&self, msg: Self::Item);
+}
+
+trait Receiver: Send + Sized + 'static {
+ type Item: Default;
+ fn recv(&self) -> Self::Item;
+ fn iter(&self) -> Box<dyn Iterator<Item=Self::Item> + '_>;
+}
+
+impl<T: Send + Debug + Default + 'static> Sender for flume::Sender<T> {
+ type Item = T;
+ type BoundedSender = Self;
+ type Receiver = flume::Receiver<T>;
+
+ fn unbounded() -> (Self, Self::Receiver) {
+ flume::unbounded()
+ }
+
+ fn bounded(n: usize) -> (Self::BoundedSender, Self::Receiver) {
+ flume::bounded(n)
+ }
+
+ fn send(&self, msg: T) {
+ flume::Sender::send(self, msg).unwrap();
+ }
+}
+
+impl<T: Send + Default + 'static> Receiver for flume::Receiver<T> {
+ type Item = T;
+
+ fn recv(&self) -> Self::Item {
+ flume::Receiver::recv(self).unwrap()
+ }
+
+ fn iter(&self) -> Box<dyn Iterator<Item=T> + '_> {
+ Box::new(std::iter::from_fn(move || flume::Receiver::recv(self).ok()))
+ }
+}
+
+impl<T: Send + Debug + Default + 'static> Sender for crossbeam_channel::Sender<T> {
+ type Item = T;
+ type BoundedSender = Self;
+ type Receiver = crossbeam_channel::Receiver<T>;
+
+ fn unbounded() -> (Self, Self::Receiver) {
+ crossbeam_channel::unbounded()
+ }
+
+ fn bounded(n: usize) -> (Self::BoundedSender, Self::Receiver) {
+ crossbeam_channel::bounded(n)
+ }
+
+ fn send(&self, msg: T) {
+ crossbeam_channel::Sender::send(self, msg).unwrap();
+ }
+}
+
+impl<T: Send + Default + 'static> Receiver for crossbeam_channel::Receiver<T> {
+ type Item = T;
+
+ fn recv(&self) -> Self::Item {
+ crossbeam_channel::Receiver::recv(self).unwrap()
+ }
+
+ fn iter(&self) -> Box<dyn Iterator<Item=T> + '_> {
+ Box::new(crossbeam_channel::Receiver::iter(self))
+ }
+}
+
+impl<T: Send + Debug + Default + 'static> Sender for mpsc::Sender<T> {
+ type Item = T;
+ type BoundedSender = mpsc::SyncSender<T>;
+ type Receiver = mpsc::Receiver<T>;
+
+ fn unbounded() -> (Self, Self::Receiver) {
+ mpsc::channel()
+ }
+
+ fn bounded(n: usize) -> (Self::BoundedSender, Self::Receiver) {
+ mpsc::sync_channel(n)
+ }
+
+ fn send(&self, msg: T) {
+ mpsc::Sender::send(self, msg).unwrap();
+ }
+}
+
+impl<T: Send + Debug + Default + 'static> Sender for mpsc::SyncSender<T> {
+ type Item = T;
+ type BoundedSender = Self;
+ type Receiver = mpsc::Receiver<T>;
+
+ fn unbounded() -> (Self, Self::Receiver) { unimplemented!() }
+ fn bounded(_: usize) -> (Self::BoundedSender, Self::Receiver) { unimplemented!() }
+
+ fn send(&self, msg: T) {
+ mpsc::SyncSender::send(self, msg).unwrap();
+ }
+}
+
+impl<T: Send + Default + 'static> Receiver for mpsc::Receiver<T> {
+ type Item = T;
+
+ fn recv(&self) -> Self::Item {
+ mpsc::Receiver::recv(self).unwrap()
+ }
+
+ fn iter(&self) -> Box<dyn Iterator<Item=T> + '_> {
+ Box::new(mpsc::Receiver::iter(self))
+ }
+}
+
+fn test_create<S: Sender>(b: &mut Bencher) {
+ b.iter(|| S::unbounded());
+}
+
+fn test_oneshot<S: Sender>(b: &mut Bencher) {
+ b.iter(|| {
+ let (tx, rx) = S::unbounded();
+ tx.send(Default::default());
+ black_box(rx.recv());
+ });
+}
+
+fn test_inout<S: Sender>(b: &mut Bencher) {
+ let (tx, rx) = S::unbounded();
+ b.iter(|| {
+ tx.send(Default::default());
+ black_box(rx.recv());
+ });
+}
+
+fn test_hydra<S: Sender>(b: &mut Bencher, thread_num: usize, msg_num: usize) {
+ let (main_tx, main_rx) = S::unbounded();
+
+ let mut txs = Vec::new();
+ for _ in 0..thread_num {
+ let main_tx = main_tx.clone();
+ let (tx, rx) = S::unbounded();
+ txs.push(tx);
+
+ thread::spawn(move || {
+ for msg in rx.iter() {
+ main_tx.send(msg);
+ }
+ });
+ }
+
+ drop(main_tx);
+
+ b.iter(|| {
+ for tx in &txs {
+ for _ in 0..msg_num {
+ tx.send(Default::default());
+ }
+ }
+
+ for _ in 0..thread_num {
+ for _ in 0..msg_num {
+ black_box(main_rx.recv());
+ }
+ }
+ });
+}
+
+fn test_kitsune<S: Sender>(b: &mut Bencher, thread_num: usize, msg_num: usize)
+ where S::Receiver: Clone
+{
+ let (out_tx, out_rx) = S::unbounded();
+ let (in_tx, in_rx) = S::unbounded();
+
+ for _ in 0..thread_num {
+ let in_tx = in_tx.clone();
+ let out_rx = out_rx.clone();
+
+ thread::spawn(move || {
+ for msg in out_rx.iter() {
+ in_tx.send(msg);
+ }
+ });
+ }
+
+ b.iter(|| {
+ for _ in 0..thread_num {
+ for _ in 0..msg_num {
+ out_tx.send(Default::default());
+ }
+ }
+
+ for _ in 0..thread_num {
+ for _ in 0..msg_num {
+ black_box(in_rx.recv());
+ }
+ }
+ });
+}
+
+fn test_robin_u<S: Sender>(b: &mut Bencher, thread_num: usize, msg_num: usize) {
+ let (mut main_tx, main_rx) = S::unbounded();
+
+ for _ in 0..thread_num {
+ let (mut tx, rx) = S::unbounded();
+ std::mem::swap(&mut tx, &mut main_tx);
+
+ thread::spawn(move || {
+ for msg in rx.iter() {
+ tx.send(msg);
+ }
+ });
+ }
+
+ b.iter(|| {
+ for _ in 0..msg_num {
+ main_tx.send(Default::default());
+ }
+
+ for _ in 0..msg_num {
+ black_box(main_rx.recv());
+ }
+ });
+}
+
+fn test_robin_b<S: Sender>(b: &mut Bencher, thread_num: usize, msg_num: usize) {
+ let (mut main_tx, main_rx) = S::bounded(1);
+
+ for _ in 0..thread_num {
+ let (mut tx, rx) = S::bounded(1);
+ std::mem::swap(&mut tx, &mut main_tx);
+
+ thread::spawn(move || {
+ for msg in rx.iter() {
+ tx.send(msg);
+ }
+ });
+ }
+
+ b.iter(|| {
+ let main_tx = main_tx.clone();
+ thread::spawn(move || {
+ for _ in 0..msg_num {
+ main_tx.send(Default::default());
+ }
+ });
+
+ for _ in 0..msg_num {
+ black_box(main_rx.recv());
+ }
+ });
+}
+
+fn test_mpsc_bounded_no_wait<S: Sender>(b: &mut Bencher, thread_num: u64) {
+ b.iter_custom(|iters| {
+ let iters = iters * 1000;
+ let (tx, rx) = S::bounded(iters as usize);
+ let start = Instant::now();
+
+ crossbeam_utils::thread::scope(|scope| {
+ for _ in 0..thread_num {
+ let tx = tx.clone();
+ scope.spawn(move |_| {
+ for _ in 0..iters / thread_num {
+ tx.send(Default::default());
+ }
+ });
+ }
+
+ for _ in 0..iters - ((iters / thread_num) * thread_num) {
+ tx.send(Default::default());
+ }
+
+ for _ in 0..iters {
+ black_box(rx.recv());
+ }
+ })
+ .unwrap();
+
+ start.elapsed()
+ })
+}
+
+fn test_mpsc_bounded<S: Sender>(b: &mut Bencher, bound: usize, thread_num: usize) {
+ b.iter_custom(|iters| {
+ let (tx, rx) = S::bounded(bound);
+ let start = Instant::now();
+
+ crossbeam_utils::thread::scope(|scope| {
+ let msgs = iters as usize * bound.max(1);
+
+ for _ in 0..thread_num {
+ let tx = tx.clone();
+ scope.spawn(move |_| {
+ for _ in 0..msgs / thread_num as usize {
+ tx.send(Default::default());
+ }
+ });
+ }
+
+ scope.spawn(move |_| {
+ // Remainder
+ for _ in 0..msgs - (msgs / thread_num as usize * thread_num) {
+ tx.send(Default::default());
+ }
+ });
+
+ for _ in 0..msgs {
+ black_box(rx.recv());
+ }
+ })
+ .unwrap();
+
+ start.elapsed()
+ })
+}
+
+fn create(b: &mut Criterion) {
+ b.bench_function("create-flume", |b| test_create::<flume::Sender<u32>>(b));
+ b.bench_function("create-crossbeam", |b| test_create::<crossbeam_channel::Sender<u32>>(b));
+ b.bench_function("create-std", |b| test_create::<mpsc::Sender<u32>>(b));
+}
+
+fn oneshot(b: &mut Criterion) {
+ b.bench_function("oneshot-flume", |b| test_oneshot::<flume::Sender<u32>>(b));
+ b.bench_function("oneshot-crossbeam", |b| test_oneshot::<crossbeam_channel::Sender<u32>>(b));
+ b.bench_function("oneshot-std", |b| test_oneshot::<mpsc::Sender<u32>>(b));
+}
+
+fn inout(b: &mut Criterion) {
+ b.bench_function("inout-flume", |b| test_inout::<flume::Sender<u32>>(b));
+ b.bench_function("inout-crossbeam", |b| test_inout::<crossbeam_channel::Sender<u32>>(b));
+ b.bench_function("inout-std", |b| test_inout::<mpsc::Sender<u32>>(b));
+}
+
+fn hydra_32t_1m(b: &mut Criterion) {
+ b.bench_function("hydra-32t-1m-flume", |b| test_hydra::<flume::Sender<u32>>(b, 32, 1));
+ b.bench_function("hydra-32t-1m-crossbeam", |b| test_hydra::<crossbeam_channel::Sender<u32>>(b, 32, 1));
+ b.bench_function("hydra-32t-1m-std", |b| test_hydra::<mpsc::Sender<u32>>(b, 32, 1));
+}
+
+fn hydra_32t_1000m(b: &mut Criterion) {
+ b.bench_function("hydra-32t-1000m-flume", |b| test_hydra::<flume::Sender<u32>>(b, 32, 1000));
+ b.bench_function("hydra-32t-1000m-crossbeam", |b| test_hydra::<crossbeam_channel::Sender<u32>>(b, 32, 1000));
+ b.bench_function("hydra-32t-1000m-std", |b| test_hydra::<mpsc::Sender<u32>>(b, 32, 1000));
+}
+
+fn hydra_256t_1m(b: &mut Criterion) {
+ b.bench_function("hydra-256t-1m-flume", |b| test_hydra::<flume::Sender<u32>>(b, 256, 1));
+ b.bench_function("hydra-256t-1m-crossbeam", |b| test_hydra::<crossbeam_channel::Sender<u32>>(b, 256, 1));
+ b.bench_function("hydra-256t-1m-std", |b| test_hydra::<mpsc::Sender<u32>>(b, 256, 1));
+}
+
+fn hydra_1t_1000m(b: &mut Criterion) {
+ b.bench_function("hydra-1t-1000m-flume", |b| test_hydra::<flume::Sender<u32>>(b, 1, 1000));
+ b.bench_function("hydra-1t-1000m-crossbeam", |b| test_hydra::<crossbeam_channel::Sender<u32>>(b, 1, 1000));
+ b.bench_function("hydra-1t-1000m-std", |b| test_hydra::<mpsc::Sender<u32>>(b, 1, 1000));
+}
+
+fn hydra_4t_10000m(b: &mut Criterion) {
+ b.bench_function("hydra-4t-10000m-flume", |b| test_hydra::<flume::Sender<u32>>(b, 4, 10000));
+ b.bench_function("hydra-4t-10000m-crossbeam", |b| test_hydra::<crossbeam_channel::Sender<u32>>(b, 4, 10000));
+ b.bench_function("hydra-4t-10000m-std", |b| test_hydra::<mpsc::Sender<u32>>(b, 4, 10000));
+}
+
+fn kitsune_32t_1m(b: &mut Criterion) {
+ b.bench_function("kitsune-32t-1m-flume", |b| test_kitsune::<flume::Sender<u32>>(b, 32, 1));
+ b.bench_function("kitsune-32t-1m-crossbeam", |b| test_kitsune::<crossbeam_channel::Sender<u32>>(b, 32, 1));
+ //b.bench_function("kitsune-32t-1m-std", |b| test_kitsune::<mpsc::Sender<u32>>(b, 32, 1));
+}
+
+fn kitsune_32t_1000m(b: &mut Criterion) {
+ b.bench_function("kitsune-32t-1000m-flume", |b| test_kitsune::<flume::Sender<u32>>(b, 32, 1000));
+ b.bench_function("kitsune-32t-1000m-crossbeam", |b| test_kitsune::<crossbeam_channel::Sender<u32>>(b, 32, 1000));
+ //b.bench_function("kitsune-32t-1000m-std", |b| test_kitsune::<mpsc::Sender<u32>>(b, 32, 1000));
+}
+
+fn kitsune_256t_1m(b: &mut Criterion) {
+ b.bench_function("kitsune-256t-1m-flume", |b| test_kitsune::<flume::Sender<u32>>(b, 256, 1));
+ b.bench_function("kitsune-256t-1m-crossbeam", |b| test_kitsune::<crossbeam_channel::Sender<u32>>(b, 256, 1));
+ //b.bench_function("kitsune-256t-1m-std", |b| test_kitsune::<mpsc::Sender<u32>>(b, 256, 1));
+}
+
+fn kitsune_1t_1000m(b: &mut Criterion) {
+ b.bench_function("kitsune-1t-1000m-flume", |b| test_kitsune::<flume::Sender<u32>>(b, 1, 1000));
+ b.bench_function("kitsune-1t-1000m-crossbeam", |b| test_kitsune::<crossbeam_channel::Sender<u32>>(b, 1, 1000));
+ //b.bench_function("kitsune-1t-1000m-std", |b| test_kitsune::<mpsc::Sender<u32>>(b, 1, 1000));
+}
+
+fn kitsune_4t_10000m(b: &mut Criterion) {
+ b.bench_function("kitsune-4t-10000m-flume", |b| test_kitsune::<flume::Sender<u32>>(b, 4, 10000));
+ b.bench_function("kitsune-4t-10000m-crossbeam", |b| test_kitsune::<crossbeam_channel::Sender<u32>>(b, 4, 10000));
+ //b.bench_function("kitsune-4t-10000m-std", |b| test_kitsune::<mpsc::Sender<u32>>(b, 4, 10000));
+}
+
+fn robin_u_32t_1m(b: &mut Criterion) {
+ b.bench_function("robin-u-32t-1m-flume", |b| test_robin_u::<flume::Sender<u32>>(b, 32, 1));
+ b.bench_function("robin-u-32t-1m-crossbeam", |b| test_robin_u::<crossbeam_channel::Sender<u32>>(b, 32, 1));
+ b.bench_function("robin-u-32t-1m-std", |b| test_robin_u::<mpsc::Sender<u32>>(b, 32, 1));
+}
+
+fn robin_u_4t_1000m(b: &mut Criterion) {
+ b.bench_function("robin-u-4t-1000m-flume", |b| test_robin_u::<flume::Sender<u32>>(b, 4, 1000));
+ b.bench_function("robin-u-4t-1000m-crossbeam", |b| test_robin_u::<crossbeam_channel::Sender<u32>>(b, 4, 1000));
+ b.bench_function("robin-u-4t-1000m-std", |b| test_robin_u::<mpsc::Sender<u32>>(b, 4, 1000));
+}
+
+fn robin_b_32t_16m(b: &mut Criterion) {
+ b.bench_function("robin-b-32t-16m-flume", |b| test_robin_b::<flume::Sender<u32>>(b, 32, 16));
+ b.bench_function("robin-b-32t-16m-crossbeam", |b| test_robin_b::<crossbeam_channel::Sender<u32>>(b, 32, 16));
+ b.bench_function("robin-b-32t-16m-std", |b| test_robin_b::<mpsc::Sender<u32>>(b, 32, 16));
+}
+
+fn robin_b_4t_1000m(b: &mut Criterion) {
+ b.bench_function("robin-b-4t-1000m-flume", |b| test_robin_b::<flume::Sender<u32>>(b, 4, 1000));
+ b.bench_function("robin-b-4t-1000m-crossbeam", |b| test_robin_b::<crossbeam_channel::Sender<u32>>(b, 4, 1000));
+ b.bench_function("robin-b-4t-1000m-std", |b| test_robin_b::<mpsc::Sender<u32>>(b, 4, 1000));
+}
+
+fn mpsc_bounded_no_wait_4t(b: &mut Criterion) {
+ b.bench_function("mpsc-bounded-no-wait-4t-flume", |b| test_mpsc_bounded_no_wait::<flume::Sender<u32>>(b, 4));
+ b.bench_function("mpsc-bounded-no-wait-4t-crossbeam", |b| test_mpsc_bounded_no_wait::<crossbeam_channel::Sender<u32>>(b, 4));
+ b.bench_function("mpsc-bounded-no-wait-4t-std", |b| test_mpsc_bounded_no_wait::<mpsc::Sender<u32>>(b, 4));
+}
+
+fn mpsc_bounded_4t(b: &mut Criterion) {
+ for bound in &[0, 1, 10, 50, 10_000] {
+ let text = format!("mpsc-bounded-small-4t-{}m-", bound);
+ let bound = *bound;
+
+ b.bench_function(&format!("{}{}", text, "flume"), |b| test_mpsc_bounded::<flume::Sender<u32>>(b, bound, 4));
+ b.bench_function(&format!("{}{}", text, "crossbeam"), |b| test_mpsc_bounded::<crossbeam_channel::Sender<u32>>(b, bound, 4));
+ b.bench_function(&format!("{}{}", text, "std"), |b| test_mpsc_bounded::<mpsc::Sender<u32>>(b, bound, 4));
+ }
+}
+
+criterion_group!(
+ compare,
+ create,
+ oneshot,
+ inout,
+ hydra_32t_1m,
+ hydra_32t_1000m,
+ hydra_256t_1m,
+ hydra_1t_1000m,
+ hydra_4t_10000m,
+ robin_b_32t_16m,
+ robin_b_4t_1000m,
+ robin_u_32t_1m,
+ robin_u_4t_1000m,
+ mpsc_bounded_no_wait_4t,
+ mpsc_bounded_4t,
+ kitsune_32t_1m,
+ kitsune_32t_1000m,
+ kitsune_256t_1m,
+ kitsune_1t_1000m,
+ kitsune_4t_10000m,
+);
+criterion_main!(compare);
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