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bench: Check self-eq performance #29

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Oct 10, 2023
Merged

bench: Check self-eq performance #29

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4 changes: 4 additions & 0 deletions Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -29,5 +29,9 @@ harness = false
name = "access"
harness = false

[[bench]]
name = "eq"
harness = false

[profile.release]
debug = 1
168 changes: 168 additions & 0 deletions benches/eq.rs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,168 @@
#![allow(
clippy::clone_on_copy,
clippy::useless_conversion,
clippy::clone_double_ref
)]

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

mod fixture;

type StringCow<'s> = std::borrow::Cow<'s, str>;

fn bench_access(c: &mut Criterion) {
let mut group = c.benchmark_group("access");
for fixture in fixture::SAMPLES {
let len = fixture.len();
group.throughput(Throughput::Bytes(len as u64));
group.bench_with_input(BenchmarkId::new("String", len), &len, |b, _| {
let uut = String::from(*fixture);
let uut = criterion::black_box(uut);
let copy = uut.clone();
let copy = criterion::black_box(copy);
b.iter(|| uut == copy)
});
group.bench_with_input(BenchmarkId::new("Box<str>", len), &len, |b, _| {
let uut = Box::<str>::from(*fixture);
let uut = criterion::black_box(uut);
let copy = uut.clone();
let copy = criterion::black_box(copy);
b.iter(|| uut == copy)
});
group.bench_with_input(BenchmarkId::new("Arc<str>", len), &len, |b, _| {
let uut = std::sync::Arc::<str>::from(*fixture);
let uut = criterion::black_box(uut);
let copy = uut.clone();
let copy = criterion::black_box(copy);
b.iter(|| uut == copy)
});
group.bench_with_input(BenchmarkId::new("StringCow::Owned", len), &len, |b, _| {
let uut = StringCow::Owned(String::from(*fixture));
let uut = criterion::black_box(uut);
let copy = uut.clone();
let copy = criterion::black_box(copy);
b.iter(|| uut == copy)
});

group.bench_with_input(BenchmarkId::new("ArcStr::from", len), &len, |b, _| {
let uut = arcstr::ArcStr::from(*fixture);
let uut = criterion::black_box(uut);
let copy = uut.clone();
let copy = criterion::black_box(copy);
b.iter(|| uut == copy)
});
group.bench_with_input(BenchmarkId::new("CompactString::new", len), &len, |b, _| {
let uut = compact_str::CompactString::new(fixture);
let uut = criterion::black_box(uut);
let copy = uut.clone();
let copy = criterion::black_box(copy);
b.iter(|| uut == copy)
});
group.bench_with_input(BenchmarkId::new("EcoString::from", len), &len, |b, _| {
let uut = ecow::EcoString::from(*fixture);
let uut = criterion::black_box(uut);
let copy = uut.clone();
let copy = criterion::black_box(copy);
b.iter(|| uut == copy)
});
group.bench_with_input(
BenchmarkId::new("flexstr::SharedStr::from_ref", len),
&len,
|b, _| {
let uut = flexstr::SharedStr::from_ref(*fixture);
let uut = criterion::black_box(uut);
let copy = uut.clone();
let copy = criterion::black_box(copy);
b.iter(|| uut == copy)
},
);
group.bench_with_input(BenchmarkId::new("HipStr::from", len), &len, |b, _| {
let uut = hipstr::HipStr::from(*fixture);
let uut = criterion::black_box(uut);
let copy = uut.clone();
let copy = criterion::black_box(copy);
b.iter(|| uut == copy)
});
group.bench_with_input(BenchmarkId::new("ImString::from", len), &len, |b, _| {
let uut = imstr::ImString::from(*fixture);
let uut = criterion::black_box(uut);
let copy = uut.clone();
let copy = criterion::black_box(copy);
b.iter(|| uut == copy)
});
group.bench_with_input(BenchmarkId::new("KString::from_ref", len), &len, |b, _| {
let uut = kstring::KString::from_ref(*fixture);
let uut = criterion::black_box(uut);
let copy = uut.clone();
let copy = criterion::black_box(copy);
b.iter(|| uut == copy)
});
group.bench_with_input(
BenchmarkId::new("KString::from_string", len),
&len,
|b, _| {
let uut = kstring::KString::from_string(String::from(*fixture));
let uut = criterion::black_box(uut);
let copy = uut.clone();
let copy = criterion::black_box(copy);
b.iter(|| uut == copy)
},
);
group.bench_with_input(
BenchmarkId::new("smartstring::String::new", len),
&len,
|b, _| {
let uut = smartstring::alias::String::from(*fixture);
let uut = criterion::black_box(uut);
let copy = uut.clone();
let copy = criterion::black_box(copy);
b.iter(|| uut == copy)
},
);
}
group.finish();
}

fn bench_access_static(c: &mut Criterion) {
let mut group = c.benchmark_group("access_static");
for fixture in fixture::SAMPLES {
let len = fixture.len();
group.throughput(Throughput::Bytes(len as u64));
group.bench_with_input(BenchmarkId::new("&'static str", len), &len, |b, _| {
let uut = *fixture;
let uut = criterion::black_box(uut);
b.iter(|| uut.is_empty())
});
group.bench_with_input(
BenchmarkId::new("StringCow::Borrowed", len),
&len,
|b, _| {
let uut = StringCow::Borrowed(*fixture);
let uut = criterion::black_box(uut);
b.iter(|| uut.is_empty())
},
);
group.bench_with_input(
BenchmarkId::new("flexstr::SharedStr::from_static", len),
&len,
|b, _| {
let uut = flexstr::SharedStr::from_static(*fixture);
let uut = criterion::black_box(uut);
b.iter(|| uut.is_empty())
},
);
group.bench_with_input(
BenchmarkId::new("KString::from_static", len),
&len,
|b, _| {
let uut = kstring::KString::from_static(*fixture);
let uut = criterion::black_box(uut);
b.iter(|| uut.is_empty())
},
);
}
group.finish();
}

criterion_group!(benches, bench_access, bench_access_static);
criterion_main!(benches);
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