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perf: make fair benchmark comparison #30

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71 changes: 37 additions & 34 deletions benches/operations.rs
Original file line number Diff line number Diff line change
@@ -1,90 +1,93 @@
use criterion::{black_box, criterion_group, criterion_main, Criterion};
use criterion::{criterion_group, criterion_main, Criterion};
use tailcall_chunk::Chunk;

const N: usize = 10000;

fn bench_operations(c: &mut Criterion) {
// Benchmark append operations
c.benchmark_group("append")
.bench_function("chunk_append", |b| {
.bench_function("Chunk", |b| {
b.iter(|| {
let mut chunk = Chunk::default();
for i in 0..10000 {
for i in 0..N {
chunk = chunk.append(i.to_string());
}

black_box(chunk);
chunk.as_vec()
})
})
.bench_function("vec_append", |b| {
.bench_function("Vec", |b| {
b.iter(|| {
let mut vec = Vec::new();
for i in 0..10000 {
for i in 0..N {
vec.push(i.to_string());
}
black_box(vec);

vec
})
});

// Benchmark prepend operations
c.benchmark_group("prepend")
.bench_function("chunk_prepend", |b| {
.bench_function("Chunk", |b| {
b.iter(|| {
let mut chunk = Chunk::default();
for i in 0..10000 {
for i in 0..N {
chunk = chunk.prepend(i.to_string());
}
black_box(chunk);
chunk.as_vec()
})
})
.bench_function("vec_prepend", |b| {
.bench_function("Vec", |b| {
b.iter(|| {
let mut vec = Vec::new();
for i in 0..10000 {
for i in 0..N {
vec.insert(0, i.to_string());
}
black_box(vec);
vec
})
});

// Benchmark concat operations
c.benchmark_group("concat")
.bench_function("chunk_concat", |b| {
let chunk1: Chunk<_> = (0..5000).map(|i| i.to_string()).collect();
let chunk2: Chunk<_> = (5000..10000).map(|i| i.to_string()).collect();
.bench_function("Chunk", |b| {
let part: Chunk<_> = (0..100).map(|i| i.to_string()).collect();
b.iter(|| {
black_box(chunk1.clone().concat(chunk2.clone()));
let mut chunk = Chunk::default();
for _ in 0..N {
chunk = chunk.concat(part.clone());
}

chunk.as_vec()
})
})
.bench_function("vec_concat", |b| {
let vec1: Vec<_> = (0..5000).map(|i| i.to_string()).collect();
let vec2: Vec<_> = (5000..10000).map(|i| i.to_string()).collect();
.bench_function("Vec", |b| {
let part: Vec<_> = (0..100).map(|i| i.to_string()).collect();
b.iter(|| {
let mut result = vec1.clone();
result.extend(vec2.iter().cloned());
black_box(result)
let mut result = Vec::new();
for _ in 0..N {
result.extend(part.iter().cloned());
}

result
})
});

// Benchmark clone operations
c.benchmark_group("clone")
.bench_function("chunk_clone", |b| {
let chunk: Chunk<_> = (0..10000).collect();
b.iter(|| {
black_box(chunk.clone());
})
.bench_function("Chunk", |b| {
let chunk: Chunk<_> = (0..N).collect();
b.iter(|| chunk.clone().as_vec())
})
.bench_function("vec_clone", |b| {
let vec: Vec<_> = (0..10000).collect();
b.iter(|| {
black_box(vec.clone());
})
.bench_function("Vec", |b| {
let vec: Vec<_> = (0..N).collect();
b.iter(|| vec.clone())
});

// Benchmark from_iter operation
c.benchmark_group("from_iter")
.bench_function("Chunk", |b| {
b.iter(|| Chunk::from_iter((0..N).into_iter()));
b.iter(|| Chunk::from_iter((0..N).into_iter()).as_vec());
})
.bench_function("Vec", |b| b.iter(|| Vec::from_iter((0..N).into_iter())));
}
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