hex.rs - mozsearch

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

use rustc_hex::{FromHex, ToHex};

const DATA: &[u8] = include_bytes!("../src/lib.rs");

fn bench_encode(c: &mut Criterion) {

    c.bench_function("hex_encode", |b| b.iter(|| hex::encode(DATA)));

    c.bench_function("rustc_hex_encode", |b| b.iter(|| DATA.to_hex::<String>()));

    c.bench_function("faster_hex_encode", |b| {

        b.iter(|| faster_hex::hex_string(DATA).unwrap())

});

    c.bench_function("faster_hex_encode_fallback", |b| {

        b.iter(|| {

            let mut dst = vec![0; DATA.len() * 2];

            faster_hex::hex_encode_fallback(DATA, &mut dst);

dst

})

});

fn bench_decode(c: &mut Criterion) {

    c.bench_function("hex_decode", |b| {

        let hex = hex::encode(DATA);

        b.iter(|| hex::decode(&hex).unwrap())

});

    c.bench_function("rustc_hex_decode", |b| {

        let hex = DATA.to_hex::<String>();

        b.iter(|| hex.from_hex::<Vec<u8>>().unwrap())

});

    c.bench_function("faster_hex_decode", move |b| {

        let hex = faster_hex::hex_string(DATA).unwrap();

        let len = DATA.len();

        let mut dst = vec![0; len];

        b.iter(|| faster_hex::hex_decode(hex.as_bytes(), &mut dst).unwrap())

});

    c.bench_function("faster_hex_decode_unchecked", |b| {

        let hex = faster_hex::hex_string(DATA).unwrap();

        let len = DATA.len();

        let mut dst = vec![0; len];

        b.iter(|| faster_hex::hex_decode_unchecked(hex.as_bytes(), &mut dst))

});

    c.bench_function("faster_hex_decode_fallback", |b| {

        let hex = faster_hex::hex_string(DATA).unwrap();

        let len = DATA.len();

        let mut dst = vec![0; len];

        b.iter(|| faster_hex::hex_decode_fallback(hex.as_bytes(), &mut dst))

});

criterion_group!(benches, bench_encode, bench_decode);

criterion_main!(benches);