51 lines
1.7 KiB
Rust
51 lines
1.7 KiB
Rust
//! Benchmark: 10k repeated (P,T) queries — cached vs uncached (Story 2.4 AC#4).
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//!
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//! Compares throughput of CachedBackend vs raw backend for repeated same-state queries.
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//! Cached path should show significant speedup when the backend is expensive (e.g. CoolProp).
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use criterion::{black_box, criterion_group, criterion_main, Criterion};
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use entropyk_core::{Pressure, Temperature};
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use entropyk_fluids::{CachedBackend, FluidBackend, FluidId, Property, TestBackend, ThermoState};
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const N_QUERIES: u32 = 10_000;
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fn bench_uncached_10k(c: &mut Criterion) {
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let backend = TestBackend::new();
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let state = ThermoState::from_pt(Pressure::from_bar(1.0), Temperature::from_celsius(25.0));
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let fluid = FluidId::new("R134a");
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c.bench_function("uncached_10k_same_state", |b| {
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b.iter(|| {
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for _ in 0..N_QUERIES {
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black_box(
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backend
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.property(fluid.clone(), Property::Density, state.clone())
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.unwrap(),
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);
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}
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});
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});
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}
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fn bench_cached_10k(c: &mut Criterion) {
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let inner = TestBackend::new();
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let cached = CachedBackend::new(inner);
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let state = ThermoState::from_pt(Pressure::from_bar(1.0), Temperature::from_celsius(25.0));
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let fluid = FluidId::new("R134a");
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c.bench_function("cached_10k_same_state", |b| {
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b.iter(|| {
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for _ in 0..N_QUERIES {
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black_box(
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cached
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.property(fluid.clone(), Property::Density, state.clone())
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.unwrap(),
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);
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}
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});
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});
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}
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criterion_group!(benches, bench_uncached_10k, bench_cached_10k);
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criterion_main!(benches);
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