completeio 0.1.0

Completion based IO drivers and async runtime
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136

use criterion::{async_executor::AsyncExecutor, criterion_group, criterion_main, Criterion};

criterion_group!(net, tcp, udp);
criterion_main!(net);

struct CompleteIoRuntime;

impl AsyncExecutor for CompleteIoRuntime {
    fn block_on<T>(&self, future: impl std::future::Future<Output = T>) -> T {
        completeio::task::block_on(future)
    }
}

fn tcp(c: &mut Criterion) {
    const PACKET_LEN: usize = 1048576;
    static PACKET: &[u8] = &[1u8; PACKET_LEN];

    let mut group = c.benchmark_group("tcp");

    group.bench_function("tokio", |b| {
        let runtime = tokio::runtime::Builder::new_current_thread()
            .enable_all()
            .build()
            .unwrap();
        b.to_async(&runtime).iter(|| async {
            use tokio::io::{AsyncReadExt, AsyncWriteExt};

            let listener = tokio::net::TcpListener::bind("127.0.0.1:0").await.unwrap();
            let addr = listener.local_addr().unwrap();
            let tx = tokio::net::TcpStream::connect(addr);
            let rx = listener.accept();
            let (mut tx, (mut rx, _)) = tokio::try_join!(tx, rx).unwrap();
            tx.write_all(PACKET).await.unwrap();
            let mut buffer = Vec::with_capacity(PACKET_LEN);
            while buffer.len() < PACKET_LEN {
                rx.read_buf(&mut buffer).await.unwrap();
            }
            buffer
        })
    });

    group.bench_function("completeio", |b| {
        b.to_async(CompleteIoRuntime).iter(|| async {
            let listener = completeio::net::TcpListener::bind("127.0.0.1:0").unwrap();
            let addr = listener.local_addr().unwrap();
            let tx = completeio::net::TcpStream::connect(addr);
            let rx = listener.accept();
            let (tx, (rx, _)) = futures_util::try_join!(tx, rx).unwrap();
            tx.send_all(PACKET).await.0.unwrap();
            let buffer = Vec::with_capacity(PACKET_LEN);
            let (recv, buffer) = rx.recv_exact(buffer).await;
            recv.unwrap();
            buffer
        })
    });

    group.finish();
}

fn udp(c: &mut Criterion) {
    const PACKET_LEN: usize = 1024;
    static PACKET: &[u8] = &[1u8; PACKET_LEN];

    let mut group = c.benchmark_group("udp");

    // The socket may be dropped by firewall when the number is too large.
    #[cfg(target_os = "linux")]
    group
        .sample_size(16)
        .measurement_time(std::time::Duration::from_millis(2))
        .warm_up_time(std::time::Duration::from_millis(2));

    group.bench_function("tokio", |b| {
        let runtime = tokio::runtime::Builder::new_current_thread()
            .enable_all()
            .build()
            .unwrap();
        b.to_async(&runtime).iter(|| async {
            let rx = tokio::net::UdpSocket::bind("127.0.0.1:0").await.unwrap();
            let addr_rx = rx.local_addr().unwrap();
            let tx = tokio::net::UdpSocket::bind("127.0.0.1:0").await.unwrap();
            let addr_tx = tx.local_addr().unwrap();

            rx.connect(addr_tx).await.unwrap();
            tx.connect(addr_rx).await.unwrap();

            {
                let mut pos = 0;
                while pos < PACKET_LEN {
                    let res = tx.send(&PACKET[pos..]).await;
                    pos += res.unwrap();
                }
            }
            {
                let mut buffer = vec![0; PACKET_LEN];
                let mut pos = 0;
                while pos < PACKET_LEN {
                    let res = rx.recv(&mut buffer[pos..]).await;
                    pos += res.unwrap();
                }
                buffer
            }
        })
    });

    group.bench_function("completeio", |b| {
        b.to_async(CompleteIoRuntime).iter(|| async {
            let rx = completeio::net::UdpSocket::bind("127.0.0.1:0").unwrap();
            let addr_rx = rx.local_addr().unwrap();
            let tx = completeio::net::UdpSocket::bind("127.0.0.1:0").unwrap();
            let addr_tx = tx.local_addr().unwrap();

            rx.connect(addr_tx).unwrap();
            tx.connect(addr_rx).unwrap();

            {
                let mut pos = 0;
                while pos < PACKET_LEN {
                    let (res, _) = tx.send(&PACKET[pos..]).await;
                    pos += res.unwrap();
                }
            }
            {
                let mut buffer = Vec::with_capacity(PACKET_LEN);
                let mut res;
                while buffer.len() < PACKET_LEN {
                    (res, buffer) = rx.recv(buffer).await;
                    res.unwrap();
                }
                buffer
            }
        })
    });

    group.finish();
}