File: encode.rs

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rust-dhcproto 0.12.0-1
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use criterion::{criterion_group, criterion_main, Criterion};
use dhcproto::v4::Message;
use dhcproto::{Decodable, Encodable, Encoder};

fn encode_benches(c: &mut Criterion) {
    let mut g = c.benchmark_group("encode");

    g.bench_function("encode_offer", |b| {
        let offer: &[u8] = &[
            0x02, 0x01, 0x06, 0x00, 0x00, 0x00, 0x15, 0x5c, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00,
            0x00, 0x00, 0xc0, 0xa8, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0xcc, 0x00, 0x0a, 0xc4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63, 0x82,
            0x53, 0x63, 0x35, 0x01, 0x02, 0x36, 0x04, 0xc0, 0xa8, 0x00, 0x01, 0x33, 0x04, 0x00,
            0x00, 0x00, 0x3c, 0x3a, 0x04, 0x00, 0x00, 0x00, 0x1e, 0x3b, 0x04, 0x00, 0x00, 0x00,
            0x34, 0x01, 0x04, 0xff, 0xff, 0xff, 0x00, 0x03, 0x04, 0xc0, 0xa8, 0x00, 0x01, 0x06,
            0x08, 0xc0, 0xa8, 0x00, 0x01, 0xc0, 0xa8, 0x01, 0x01, 0xff, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        ];
        let message = Message::from_bytes(offer).unwrap();
        let mut bytes = Vec::with_capacity(offer.len());
        b.iter(|| {
            message.encode(&mut Encoder::new(&mut bytes)).unwrap();
        });
    });

    g.bench_function("encode_bootreq", |b| {
        let bootreq: &[u8] = &[
            1u8, // op
            2,   // htype
            3,   // hlen
            4,   // ops
            5, 6, 7, 8, // xid
            9, 10, // secs
            11, 12, // flags
            13, 14, 15, 16, // ciaddr
            17, 18, 19, 20, // yiaddr
            21, 22, 23, 24, // siaddr
            25, 26, 27, 28, // giaddr
            29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, // chaddr
            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,
            0, // sname: "-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijk",
            109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125,
            109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125,
            109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125,
            109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125,
            109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125,
            109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125,
            109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125,
            109, 0, 0, 0, 0, 0, 0, 0,
            0, // file: "mnopqrstuvwxyz{|}mnopqrstuvwxyz{|}mnopqrstuvwxyz{|}mnopqrstuvwxyz{|}mnopqrstuvwxyz{|}mnopqrstuvwxyz{|}mnopqrstuvwxyz{|}m",
            99, 130, 83, 99, // magic cookie
        ];
        let message = Message::from_bytes(bootreq).unwrap();
        let mut bytes = Vec::with_capacity(bootreq.len());
        b.iter(|| {
            message.encode(&mut Encoder::new(&mut bytes)).unwrap();
        });
    });

    g.bench_function("encode_discover", |b| {
        let discover: &[u8] = &[
            0x01, 0x01, 0x06, 0x00, 0xa6, 0x80, 0x56, 0x74, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0xde, 0xad, 0xc0, 0xde, 0xca, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63, 0x82,
            0x53, 0x63, 0x35, 0x01, 0x01, 0x37, 0x40, 0xfc, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
            0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14,
            0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22,
            0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30,
            0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x43,
            0x42, 0x33, 0x04, 0x00, 0x00, 0x00, 0x01, 0xff,
        ];
        let message = Message::from_bytes(discover).unwrap();
        let mut bytes = Vec::with_capacity(discover.len());
        b.iter(|| {
            message.encode(&mut Encoder::new(&mut bytes)).unwrap();
        });
    });

    g.bench_function("encode_other_offer", |b| {
        let other_offer: &[u8] = &[
            0x02, 0x01, 0x06, 0x00, 0xa6, 0x80, 0x56, 0x74, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00,
            0x00, 0x00, 0xc0, 0xa8, 0x00, 0x95, 0xc0, 0xa8, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
            0xde, 0xad, 0xc0, 0xde, 0xca, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63, 0x82,
            0x53, 0x63, 0x35, 0x01, 0x02, 0x36, 0x04, 0xc0, 0xa8, 0x00, 0x01, 0x33, 0x04, 0x00,
            0x00, 0x00, 0x78, 0x3a, 0x04, 0x00, 0x00, 0x00, 0x3c, 0x3b, 0x04, 0x00, 0x00, 0x00,
            0x69, 0x01, 0x04, 0xff, 0xff, 0xff, 0x00, 0x1c, 0x04, 0xc0, 0xa8, 0x00, 0xff, 0x06,
            0x04, 0xc0, 0xa8, 0x00, 0x01, 0x03, 0x04, 0xc0, 0xa8, 0x00, 0x01, 0xff, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        ];
        let message = Message::from_bytes(other_offer).unwrap();
        let mut bytes = Vec::with_capacity(other_offer.len());
        b.iter(|| {
            message.encode(&mut Encoder::new(&mut bytes)).unwrap();
        });
    });
    g.bench_function("encode_opts", |b| {
        let opts: &[u8] = &[
            53, 1, 2, 54, 4, 192, 168, 0, 1, 51, 4, 0, 0, 0, 60, 58, 4, 0, 0, 0, 30, 59, 4, 0, 0,
            0, 52, 1, 4, 255, 255, 255, 0, 3, 4, 192, 168, 0, 1, 6, 8, 192, 168, 0, 1, 192, 168, 1,
            1, 255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        ];
        let x = dhcproto::v4::DhcpOptions::from_bytes(opts).unwrap();
        let mut bytes = Vec::with_capacity(opts.len());
        b.iter(|| {
            x.encode(&mut Encoder::new(&mut bytes)).unwrap();
        });
    });
}

criterion_group!(benches, encode_benches);
criterion_main!(benches);