Initial import of criterion-0.3.3.

Bug: 155309706
Change-Id: I8d6ee6f1995361f33b3b63527d1236f13de1ab0c

1 files changed, 32 insertions, 0 deletions

diff --git a/benches/benchmarks/measurement_overhead.rs b/benches/benchmarks/measurement_overhead.rs
new file mode 100755
index 0000000..15b243d
--- /dev/null
+++ b/benches/benchmarks/measurement_overhead.rs
@@ -0,0 +1,32 @@
+use criterion::{criterion_group, BatchSize, Criterion};
+
+fn some_benchmark(c: &mut Criterion) {
+    let mut group = c.benchmark_group("overhead");
+    group.bench_function("iter", |b| b.iter(|| 1));
+    group.bench_function("iter_with_setup", |b| b.iter_with_setup(|| (), |_| 1));
+    group.bench_function("iter_with_large_setup", |b| {
+        b.iter_with_large_setup(|| (), |_| 1)
+    });
+    group.bench_function("iter_with_large_drop", |b| b.iter_with_large_drop(|| 1));
+    group.bench_function("iter_batched_small_input", |b| {
+        b.iter_batched(|| (), |_| 1, BatchSize::SmallInput)
+    });
+    group.bench_function("iter_batched_large_input", |b| {
+        b.iter_batched(|| (), |_| 1, BatchSize::LargeInput)
+    });
+    group.bench_function("iter_batched_per_iteration", |b| {
+        b.iter_batched(|| (), |_| 1, BatchSize::PerIteration)
+    });
+    group.bench_function("iter_batched_ref_small_input", |b| {
+        b.iter_batched_ref(|| (), |_| 1, BatchSize::SmallInput)
+    });
+    group.bench_function("iter_batched_ref_large_input", |b| {
+        b.iter_batched_ref(|| (), |_| 1, BatchSize::LargeInput)
+    });
+    group.bench_function("iter_batched_ref_per_iteration", |b| {
+        b.iter_batched_ref(|| (), |_| 1, BatchSize::PerIteration)
+    });
+    group.finish();
+}
+
+criterion_group!(benches, some_benchmark);