20 lines
728 B
Rust
20 lines
728 B
Rust
use criterion::{black_box, criterion_group, criterion_main, Criterion};
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fn init(x: usize, y: usize) -> Vec<Vec<u32>> {
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vec![vec![42; x]; y]
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}
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fn init_flat(x: usize, y: usize) -> Vec<u32> {
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vec![42; x * y]
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}
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fn criterion_benchmark(c: &mut Criterion) {
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c.bench_function("Init 20x20", |b| b.iter(|| init(black_box(20), black_box(20))));
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c.bench_function("Init flat 20x20", |b| b.iter(|| init_flat(black_box(20), black_box(20))));
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c.bench_function("Init 2000x2000", |b| b.iter(|| init(black_box(2000), black_box(2000))));
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c.bench_function("Init flat 2000x2000", |b| b.iter(|| init_flat(black_box(2000), black_box(2000))));
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}
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criterion_group!(benches, criterion_benchmark);
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criterion_main!(benches);
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