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|
//! Benchmarks for a variety of I/O operations.
use async_io::Async;
use criterion::{black_box, criterion_group, criterion_main, Criterion};
use futures_lite::{future, prelude::*};
use std::net::{Ipv4Addr, SocketAddr, TcpListener, TcpStream, UdpSocket};
/// Block on a future, either using the I/O driver or simple parking.
fn block_on<R>(fut: impl Future<Output = R>, drive: bool) -> R {
if drive {
async_io::block_on(fut)
} else {
future::block_on(fut)
}
}
fn read_and_write(b: &mut Criterion) {
const TCP_AMOUNT: usize = 1024 * 1024;
let mut group = b.benchmark_group("read_and_write");
for (driver_name, exec) in [("Undriven", false), ("Driven", true)] {
// Benchmark the TCP streams.
let init_reader_writer = || {
let listener = TcpListener::bind("localhost:12345").unwrap();
let read_stream = TcpStream::connect("localhost:12345").unwrap();
let (write_stream, _) = listener.accept().unwrap();
let reader = Async::new(read_stream).unwrap();
let writer = Async::new(write_stream).unwrap();
(listener, reader, writer)
};
group.bench_function(format!("TcpStream.{}", driver_name), move |b| {
let (_listener, mut reader, mut writer) = init_reader_writer();
let mut buf = vec![0x42; TCP_AMOUNT];
b.iter(|| {
let buf = &mut buf;
block_on(
async {
black_box(writer.write_all(&*buf).await.ok());
black_box(reader.read_exact(buf).await.ok());
},
exec,
);
});
});
#[cfg(unix)]
{
// Benchmark the Unix sockets.
use std::os::unix::net::UnixStream;
const UNIX_AMOUNT: usize = 1024;
group.bench_function(format!("UnixStream.{}", driver_name), |b| {
let (mut reader, mut writer) = Async::<UnixStream>::pair().unwrap();
let mut buf = vec![0x42; UNIX_AMOUNT];
b.iter(|| {
let buf = &mut buf;
block_on(
async {
black_box(writer.write_all(&*buf).await.ok());
black_box(reader.read_exact(buf).await.ok());
},
exec,
);
});
});
}
}
}
fn connect_and_accept(c: &mut Criterion) {
let mut group = c.benchmark_group("connect_and_accept");
for (driver_name, exec) in [("Undriven", false), ("Driven", true)] {
// Benchmark the TCP streams.
group.bench_function(format!("TcpStream.{}", driver_name), move |b| {
let socket_addr =
SocketAddr::new("127.0.0.1".parse::<Ipv4Addr>().unwrap().into(), 12345);
let listener = Async::<TcpListener>::bind(socket_addr).unwrap();
b.iter(|| {
block_on(
async {
let _reader = Async::<TcpStream>::connect(socket_addr).await.ok();
black_box(listener.accept().await.ok());
drop(black_box(_reader));
},
exec,
);
});
});
#[cfg(unix)]
{
// Benchmark the Unix sockets.
use std::os::unix::net::{UnixListener, UnixStream};
let mut id = [0u8; 8];
getrandom::getrandom(&mut id).unwrap();
let id = u64::from_ne_bytes(id);
let socket_addr = format!("/tmp/async-io-bench-{}.sock", id);
let listener = Async::<UnixListener>::bind(&socket_addr).unwrap();
group.bench_function(format!("UnixStream.{}", driver_name), |b| {
b.iter(|| {
block_on(
async {
let _reader = Async::<UnixStream>::connect(&socket_addr).await.ok();
black_box(listener.accept().await.ok());
drop(black_box(_reader));
},
exec,
);
});
});
drop(listener);
}
}
}
fn udp_send_recv(c: &mut Criterion) {
const UDP_AMOUNT: usize = 1024;
let mut group = c.benchmark_group("udp_send_recv");
// Create a pair of UDP sockets.
let socket_addr = |port| SocketAddr::new("127.0.0.1".parse::<Ipv4Addr>().unwrap().into(), port);
let socket_addr1 = socket_addr(12345);
let socket_addr2 = socket_addr(12346);
let reader = Async::<UdpSocket>::bind(socket_addr1).unwrap();
let writer = Async::<UdpSocket>::bind(socket_addr2).unwrap();
let mut buf = vec![0x42; UDP_AMOUNT];
for (driver_name, exec) in [("Undriven", false), ("Driven", true)] {
group.bench_function(format!("UdpSocket.{}", driver_name), |b| {
b.iter(|| {
let buf = &mut buf;
block_on(
async {
black_box(writer.send_to(&*buf, socket_addr1).await.ok());
black_box(reader.recv_from(buf).await.ok());
},
exec,
);
});
});
}
}
criterion_group! {
io_benchmarks,
read_and_write,
connect_and_accept,
udp_send_recv
}
criterion_main!(io_benchmarks);
|
