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use criterion::{black_box, BatchSize, BenchmarkId, Criterion, Throughput};
use rand::{seq::SliceRandom, Rng};
use std::collections::{BTreeSet, HashSet};
use crate::util::{
self,
hash::{HashbrownSet, IdentityHashSet, IdentityHashbrownSet},
rand::shuffled_bytes,
Bool256,
};
use byte_set::ByteSet;
pub fn benches(criterion: &mut Criterion) {
let mut group = criterion.benchmark_group("Remove (Single)");
let mut rng = rand::thread_rng();
for &size in util::SIZES {
group.throughput(Throughput::Bytes(size as u64));
group.bench_function(BenchmarkId::new("ByteSet", size), |b| {
b.iter_batched_ref(
|| {
let bytes = shuffled_bytes(&mut rng);
let bytes = &bytes[..size];
if let Some(&byte) = bytes.choose(&mut rng) {
black_box((byte, bytes.iter().collect()))
} else {
black_box((rng.gen::<u8>(), ByteSet::new()))
}
},
|(byte, byte_set)| {
byte_set.remove(*byte);
black_box(byte_set);
},
BatchSize::SmallInput,
)
});
group.bench_function(BenchmarkId::new("[bool; 256]", size), |b| {
b.iter_batched_ref(
|| {
let bytes = shuffled_bytes(&mut rng);
let bytes = &bytes[..size];
if let Some(&byte) = bytes.choose(&mut rng) {
black_box((byte, bytes.iter().collect()))
} else {
black_box((rng.gen::<u8>(), Bool256::new()))
}
},
|(byte, bool256)| {
bool256.remove(*byte);
black_box(bool256);
},
BatchSize::SmallInput,
)
});
group.bench_function(BenchmarkId::new("HashSet<u8>", size), |b| {
b.iter_batched_ref(
|| {
let bytes = shuffled_bytes(&mut rng);
let bytes = &bytes[..size];
if let Some(&byte) = bytes.choose(&mut rng) {
black_box((byte, bytes.iter().cloned().collect()))
} else {
black_box((rng.gen::<u8>(), HashSet::<u8>::new()))
}
},
|(byte, hash_set)| {
hash_set.remove(byte);
black_box(hash_set);
},
BatchSize::SmallInput,
)
});
group.bench_function(
BenchmarkId::new("HashSet<u8> (Identity Hash)", size),
|b| {
b.iter_batched_ref(
|| {
let bytes = shuffled_bytes(&mut rng);
let bytes = &bytes[..size];
if let Some(&byte) = bytes.choose(&mut rng) {
black_box((byte, bytes.iter().cloned().collect()))
} else {
black_box((
rng.gen::<u8>(),
IdentityHashSet::<u8>::default(),
))
}
},
|(byte, hash_set)| {
hash_set.remove(byte);
black_box(hash_set);
},
BatchSize::SmallInput,
)
},
);
group.bench_function(
BenchmarkId::new("hashbrown::HashSet<u8>", size),
|b| {
b.iter_batched_ref(
|| {
let bytes = shuffled_bytes(&mut rng);
let bytes = &bytes[..size];
if let Some(&byte) = bytes.choose(&mut rng) {
black_box((byte, bytes.iter().cloned().collect()))
} else {
black_box((
rng.gen::<u8>(),
HashbrownSet::<u8>::new(),
))
}
},
|(byte, hash_set)| {
hash_set.remove(byte);
black_box(hash_set);
},
BatchSize::SmallInput,
)
},
);
group.bench_function(
BenchmarkId::new("hashbrown::HashSet<u8> (Identity Hash)", size),
|b| {
b.iter_batched_ref(
|| {
let bytes = shuffled_bytes(&mut rng);
let bytes = &bytes[..size];
if let Some(&byte) = bytes.choose(&mut rng) {
black_box((byte, bytes.iter().cloned().collect()))
} else {
black_box((
rng.gen::<u8>(),
IdentityHashbrownSet::<u8>::default(),
))
}
},
|(byte, hash_set)| {
hash_set.remove(byte);
black_box(hash_set);
},
BatchSize::SmallInput,
)
},
);
group.bench_function(
BenchmarkId::new("fixedbitset::FixedBitSet", size),
|b| {
b.iter_batched_ref(
|| {
let bytes = shuffled_bytes(&mut rng);
let bytes = &bytes[..size];
if let Some(&byte) = bytes.choose(&mut rng) {
black_box((
byte as usize,
bytes
.iter()
.cloned()
.map(|byte| byte as usize)
.collect(),
))
} else {
black_box((
rng.gen::<u8>() as usize,
fixedbitset::FixedBitSet::default(),
))
}
},
|(byte, fixed_bit_set)| {
if fixed_bit_set.len() != 0 {
fixed_bit_set.set(*byte as usize, false);
}
black_box(fixed_bit_set);
},
BatchSize::SmallInput,
)
},
);
group.bench_function(BenchmarkId::new("BTreeSet<u8>", size), |b| {
b.iter_batched_ref(
|| {
let bytes = shuffled_bytes(&mut rng);
let bytes = &bytes[..size];
if let Some(&byte) = bytes.choose(&mut rng) {
black_box((byte, bytes.iter().cloned().collect()))
} else {
black_box((rng.gen::<u8>(), BTreeSet::<u8>::new()))
}
},
|(byte, btree_set)| {
btree_set.remove(byte);
black_box(btree_set);
},
BatchSize::SmallInput,
)
});
group.bench_function(BenchmarkId::new("Vec<u8>", size), |b| {
b.iter_batched_ref(
|| {
let bytes = shuffled_bytes(&mut rng);
let bytes = &bytes[..size];
if let Some(&byte) = bytes.choose(&mut rng) {
black_box((byte, bytes.into()))
} else {
black_box((rng.gen::<u8>(), Vec::<u8>::new()))
}
},
|(byte, vec)| {
util::vec_remove_item(vec, byte);
black_box(vec);
},
BatchSize::SmallInput,
)
});
group.bench_function(
BenchmarkId::new("Vec<u8> (Binary Search)", size),
|b| {
b.iter_batched_ref(
|| {
let bytes = shuffled_bytes(&mut rng);
let bytes = &bytes[..size];
if let Some(&byte) = bytes.choose(&mut rng) {
let mut vec = Vec::<u8>::from(bytes);
vec.sort_unstable();
black_box((byte, vec))
} else {
black_box((rng.gen::<u8>(), Vec::<u8>::new()))
}
},
|(byte, vec)| {
util::vec_remove_item_binary_search(vec, byte);
black_box(vec);
},
BatchSize::SmallInput,
)
},
);
}
group.finish();
}