Squashed 'vendor/ruvector/' content from commit b64c2172

git-subtree-dir: vendor/ruvector
git-subtree-split: b64c21726f2bb37286d9ee36a7869fef60cc6900

crates/ruvector-verified/benches/arena_throughput.rs

@@ -0,0 +1,85 @@
+//! Arena throughput benchmarks.
+use criterion::{criterion_group, criterion_main, BenchmarkId, Criterion};
+
+fn bench_env_alloc_sequential(c: &mut Criterion) {
+    let mut group = c.benchmark_group("env_alloc_sequential");
+    for count in [100, 1000, 10_000] {
+        group.bench_with_input(BenchmarkId::from_parameter(count), &count, |b, &count| {
+            b.iter(|| {
+                let mut env = ruvector_verified::ProofEnvironment::new();
+                for _ in 0..count {
+                    env.alloc_term();
+                }
+            });
+        });
+    }
+    group.finish();
+}
+
+fn bench_env_cache_throughput(c: &mut Criterion) {
+    c.bench_function("cache_insert_1000", |b| {
+        b.iter(|| {
+            let mut env = ruvector_verified::ProofEnvironment::new();
+            for i in 0..1000u64 {
+                env.cache_insert(i, i as u32);
+            }
+        });
+    });
+}
+
+fn bench_env_cache_lookup_hit(c: &mut Criterion) {
+    c.bench_function("cache_lookup_1000_hits", |b| {
+        let mut env = ruvector_verified::ProofEnvironment::new();
+        for i in 0..1000u64 {
+            env.cache_insert(i, i as u32);
+        }
+        b.iter(|| {
+            for i in 0..1000u64 {
+                env.cache_lookup(i);
+            }
+        });
+    });
+}
+
+fn bench_env_reset(c: &mut Criterion) {
+    c.bench_function("env_reset", |b| {
+        let mut env = ruvector_verified::ProofEnvironment::new();
+        for i in 0..1000u64 {
+            env.cache_insert(i, i as u32);
+        }
+        env.alloc_term();
+        b.iter(|| {
+            env.reset();
+        });
+    });
+}
+
+fn bench_pool_acquire_release(c: &mut Criterion) {
+    c.bench_function("pool_acquire_release", |b| {
+        b.iter(|| {
+            let _res = ruvector_verified::pools::acquire();
+            // auto-returns on drop
+        });
+    });
+}
+
+fn bench_attestation_roundtrip(c: &mut Criterion) {
+    c.bench_function("attestation_roundtrip", |b| {
+        let att = ruvector_verified::ProofAttestation::new([1u8; 32], [2u8; 32], 42, 9500);
+        b.iter(|| {
+            let bytes = att.to_bytes();
+            ruvector_verified::proof_store::ProofAttestation::from_bytes(&bytes).unwrap();
+        });
+    });
+}
+
+criterion_group!(
+    benches,
+    bench_env_alloc_sequential,
+    bench_env_cache_throughput,
+    bench_env_cache_lookup_hit,
+    bench_env_reset,
+    bench_pool_acquire_release,
+    bench_attestation_roundtrip,
+);
+criterion_main!(benches);