51 lines
1.2 KiB
Rust
51 lines
1.2 KiB
Rust
use criterion::{criterion_group, criterion_main, Criterion, Throughput};
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use std::sync::atomic::{AtomicU32, Ordering};
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use std::sync::Arc;
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use std::time::Duration;
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const ITERATIONS: usize = 1_000_000;
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fn bench_move() {
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let mut value = Arc::new(AtomicU32::new(0));
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for _ in 0..ITERATIONS {
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value = do_something_with_move(value);
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}
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assert_eq!(value.load(Ordering::Relaxed), ITERATIONS as u32);
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}
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fn do_something_with_move(value: Arc<AtomicU32>) -> Arc<AtomicU32> {
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value.fetch_add(1, Ordering::Relaxed);
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value
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}
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fn bench_clone() {
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let value = Arc::new(AtomicU32::new(0));
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for _ in 0..ITERATIONS {
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do_something_with_clone(value.clone());
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}
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assert_eq!(value.load(Ordering::Relaxed), ITERATIONS as u32);
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}
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fn do_something_with_clone(value: Arc<AtomicU32>) {
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value.fetch_add(1, Ordering::Relaxed);
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}
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fn bench_move_vs_clone(c: &mut Criterion) {
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let mut group = c.benchmark_group("move_vs_clone");
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group.throughput(Throughput::Elements(1));
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group.sample_size(10);
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group.measurement_time(Duration::from_secs(10));
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group.bench_function("move", |b| {
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b.iter(|| bench_move());
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});
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group.bench_function("clone", |b| {
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b.iter(|| bench_clone());
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});
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group.finish();
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}
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criterion_group!(benches, bench_move_vs_clone);
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criterion_main!(benches);
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