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Only bench smol_str stuff

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Alex Butler 2025-09-14 00:30:49 +01:00 committed by Lukas Wirth
parent 09ecb46094
commit 2cb99fb418
1 changed files with 5 additions and 44 deletions
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49
lib/smol_str/benches/bench.rs
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@ -1,4 +1,3 @@
//! SmolStr vs String benchmarks.
use criterion::{criterion_group, criterion_main, Criterion};
use rand::distr::{Alphanumeric, SampleString};
use smol_str::{format_smolstr, SmolStr, StrExt, ToSmolStr};
@ -15,16 +14,11 @@ fn format_bench(c: &mut Criterion) {
let str_len = len.checked_sub(n.to_smolstr().len()).unwrap();
let str = Alphanumeric.sample_string(&mut rand::rng(), str_len);
c.bench_function(&format!("SmolStr format_smolstr! len={len}"), |b| {
c.bench_function(&format!("format_smolstr! len={len}"), |b| {
let mut v = <_>::default();
b.iter(|| v = format_smolstr!("{str}-{n}"));
assert_eq!(v, format!("{str}-{n}"));
});
c.bench_function(&format!("std format! len={len}"), |b| {
let mut v = <_>::default();
b.iter(|| v = format!("{str}-{n}"));
assert_eq!(v, format!("{str}-{n}"));
});
}
}
@ -37,11 +31,6 @@ fn from_str_bench(c: &mut Criterion) {
b.iter(|| v = SmolStr::from(black_box(&str)));
assert_eq!(v, str);
});
c.bench_function(&format!("std String::from len={len}"), |b| {
let mut v = <_>::default();
b.iter(|| v = String::from(black_box(&str)));
assert_eq!(v, str);
});
}
}
@ -55,11 +44,6 @@ fn clone_bench(c: &mut Criterion) {
b.iter(|| v = smolstr.clone());
assert_eq!(v, str);
});
c.bench_function(&format!("std String::clone len={len}"), |b| {
let mut v = <_>::default();
b.iter(|| v = str.clone());
assert_eq!(v, str);
});
}
}
@ -73,11 +57,6 @@ fn eq_bench(c: &mut Criterion) {
b.iter(|| v = smolstr == black_box(&str));
assert!(v);
});
c.bench_function(&format!("std String::eq len={len}"), |b| {
let mut v = false;
b.iter(|| v = &str == black_box(&str));
assert!(v);
});
}
}
@ -90,16 +69,11 @@ fn to_lowercase_bench(c: &mut Criterion) {
str.push(END_CHAR);
let str = str.as_str();
c.bench_function(&format!("SmolStr to_lowercase_smolstr len={len}"), |b| {
c.bench_function(&format!("to_lowercase_smolstr len={len}"), |b| {
let mut v = <_>::default();
b.iter(|| v = str.to_lowercase_smolstr());
assert_eq!(v, str.to_lowercase());
});
c.bench_function(&format!("std to_lowercase len={len}"), |b| {
let mut v = <_>::default();
b.iter(|| v = str.to_lowercase());
assert_eq!(v, str.to_lowercase());
});
}
}
@ -108,17 +82,9 @@ fn to_ascii_lowercase_bench(c: &mut Criterion) {
let str = Alphanumeric.sample_string(&mut rand::rng(), len);
let str = str.as_str();
c.bench_function(
&format!("SmolStr to_ascii_lowercase_smolstr len={len}"),
|b| {
let mut v = <_>::default();
b.iter(|| v = str.to_ascii_lowercase_smolstr());
assert_eq!(v, str.to_ascii_lowercase());
},
);
c.bench_function(&format!("std to_ascii_lowercase len={len}"), |b| {
c.bench_function(&format!("to_ascii_lowercase_smolstr len={len}"), |b| {
let mut v = <_>::default();
b.iter(|| v = str.to_ascii_lowercase());
b.iter(|| v = str.to_ascii_lowercase_smolstr());
assert_eq!(v, str.to_ascii_lowercase());
});
}
@ -131,16 +97,11 @@ fn replace_bench(c: &mut Criterion) {
+ &Alphanumeric.sample_string(&mut rand::rng(), len - 1 - len / 2);
let str = s_dash_s.as_str();
c.bench_function(&format!("SmolStr replace_smolstr len={len}"), |b| {
c.bench_function(&format!("replace_smolstr len={len}"), |b| {
let mut v = <_>::default();
b.iter(|| v = str.replace_smolstr("-", "_"));
assert_eq!(v, str.replace("-", "_"));
});
c.bench_function(&format!("std replace len={len}"), |b| {
let mut v = <_>::default();
b.iter(|| v = str.replace("-", "_"));
assert_eq!(v, str.replace("-", "_"));
});
}
}