update dependencies

src/benches/bench.rs

@@ -1,19 +1,28 @@
 use criterion::{black_box, criterion_group, criterion_main, Criterion};
 use maxwell::Universe;
 
-fn simple_system(w: u32, h: u32) -> Universe {
-    let mut universe = Universe::new(w, h);
-    universe.init(0.0, 0.0);
-    for _ in 0..100 {
+fn advance_system(universe: &mut Universe, n: usize) {
+    for _ in 0..n {
         universe.advance(0.01);
     }
-    universe
 }
 
 fn performance_benchmark(c: &mut Criterion) {
-    c.bench_function("complete system", |b| {
-        b.iter(|| simple_system(black_box(25), black_box(30)))
+    let mut group = c.benchmark_group("System");
+    group.sample_size(15);
+
+    let w = 35;
+    let h = 26;
+    let mut universe = Universe::new(w, h);
+
+    group.bench_function("advance", |b| {
+        b.iter(|| {
+            universe.init(0.0, 0.0);
+            advance_system(&mut universe, black_box(20))
+        })
     });
+
+    group.finish();
 }
 
 criterion_group!(benches, performance_benchmark);