mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-23 23:02:23 +00:00
125 lines
3.9 KiB
Rust
125 lines
3.9 KiB
Rust
// To run:
|
|
//
|
|
// cargo criterion --features criterion/real_blackbox
|
|
//
|
|
// This benchmarks each of the different libraries at several ratios of ASCII to
|
|
// non-ASCII content. There is one additional benchmark labeled "baseline" which
|
|
// just iterates over characters in a string, converting UTF-8 to 32-bit chars.
|
|
//
|
|
// Criterion will show a time in milliseconds. The non-baseline bench functions
|
|
// each make one million function calls (2 calls per character, 500K characters
|
|
// in the strings created by gen_string). The "time per call" listed in our
|
|
// readme is computed by subtracting this baseline from the other bench
|
|
// functions' time, then dividing by one million (ms -> ns).
|
|
|
|
#![allow(clippy::needless_pass_by_value)]
|
|
|
|
#[path = "../tests/fst/mod.rs"]
|
|
mod fst;
|
|
#[path = "../tests/roaring/mod.rs"]
|
|
mod roaring;
|
|
#[path = "../tests/trie/mod.rs"]
|
|
mod trie;
|
|
|
|
use criterion::{black_box, criterion_group, criterion_main, Criterion};
|
|
use rand::distributions::{Bernoulli, Distribution, Uniform};
|
|
use rand::rngs::SmallRng;
|
|
use rand::SeedableRng;
|
|
use std::time::Duration;
|
|
|
|
fn gen_string(p_nonascii: u32) -> String {
|
|
let mut rng = SmallRng::from_seed([b'!'; 32]);
|
|
let pick_nonascii = Bernoulli::from_ratio(p_nonascii, 100).unwrap();
|
|
let ascii = Uniform::new_inclusive('\0', '\x7f');
|
|
let nonascii = Uniform::new_inclusive(0x80 as char, char::MAX);
|
|
|
|
let mut string = String::new();
|
|
for _ in 0..500_000 {
|
|
let distribution = if pick_nonascii.sample(&mut rng) {
|
|
nonascii
|
|
} else {
|
|
ascii
|
|
};
|
|
string.push(distribution.sample(&mut rng));
|
|
}
|
|
|
|
string
|
|
}
|
|
|
|
fn bench(c: &mut Criterion, group_name: &str, string: String) {
|
|
let mut group = c.benchmark_group(group_name);
|
|
group.measurement_time(Duration::from_secs(10));
|
|
group.bench_function("baseline", |b| {
|
|
b.iter(|| {
|
|
for ch in string.chars() {
|
|
black_box(ch);
|
|
}
|
|
});
|
|
});
|
|
group.bench_function("unicode-ident", |b| {
|
|
b.iter(|| {
|
|
for ch in string.chars() {
|
|
black_box(unicode_ident::is_xid_start(ch));
|
|
black_box(unicode_ident::is_xid_continue(ch));
|
|
}
|
|
});
|
|
});
|
|
group.bench_function("unicode-xid", |b| {
|
|
b.iter(|| {
|
|
for ch in string.chars() {
|
|
black_box(unicode_xid::UnicodeXID::is_xid_start(ch));
|
|
black_box(unicode_xid::UnicodeXID::is_xid_continue(ch));
|
|
}
|
|
});
|
|
});
|
|
group.bench_function("ucd-trie", |b| {
|
|
b.iter(|| {
|
|
for ch in string.chars() {
|
|
black_box(trie::XID_START.contains_char(ch));
|
|
black_box(trie::XID_CONTINUE.contains_char(ch));
|
|
}
|
|
});
|
|
});
|
|
group.bench_function("fst", |b| {
|
|
let xid_start_fst = fst::xid_start_fst();
|
|
let xid_continue_fst = fst::xid_continue_fst();
|
|
b.iter(|| {
|
|
for ch in string.chars() {
|
|
let ch_bytes = (ch as u32).to_be_bytes();
|
|
black_box(xid_start_fst.contains(ch_bytes));
|
|
black_box(xid_continue_fst.contains(ch_bytes));
|
|
}
|
|
});
|
|
});
|
|
group.bench_function("roaring", |b| {
|
|
let xid_start_bitmap = roaring::xid_start_bitmap();
|
|
let xid_continue_bitmap = roaring::xid_continue_bitmap();
|
|
b.iter(|| {
|
|
for ch in string.chars() {
|
|
black_box(xid_start_bitmap.contains(ch as u32));
|
|
black_box(xid_continue_bitmap.contains(ch as u32));
|
|
}
|
|
});
|
|
});
|
|
group.finish();
|
|
}
|
|
|
|
fn bench0(c: &mut Criterion) {
|
|
bench(c, "0%-nonascii", gen_string(0));
|
|
}
|
|
|
|
fn bench1(c: &mut Criterion) {
|
|
bench(c, "1%-nonascii", gen_string(1));
|
|
}
|
|
|
|
fn bench10(c: &mut Criterion) {
|
|
bench(c, "10%-nonascii", gen_string(10));
|
|
}
|
|
|
|
fn bench100(c: &mut Criterion) {
|
|
bench(c, "100%-nonascii", gen_string(100));
|
|
}
|
|
|
|
criterion_group!(benches, bench0, bench1, bench10, bench100);
|
|
criterion_main!(benches);
|