metal: commit 1.5ms before the next page flip

src/utils/geometric_decay.rs

@@ -7,7 +7,6 @@ pub struct GeometricDecay {
 }
 
 impl GeometricDecay {
-    #[expect(dead_code)]
     pub fn new(mut p1: f64, reset: u64) -> Self {
         if p1.is_nan() || p1 < 0.01 {
             p1 = 0.01;
@@ -23,17 +22,14 @@ impl GeometricDecay {
         }
     }
 
-    #[expect(dead_code)]
     pub fn reset(&self, v: u64) {
         self.v.set(v as f64 / self.p1);
     }
 
-    #[expect(dead_code)]
     pub fn get(&self) -> u64 {
         (self.p1 * self.v.get()) as u64
     }
 
-    #[expect(dead_code)]
     pub fn add(&self, n: u64) {
         let v = n as f64 + self.p2 * self.v.get();
         self.v.set(v);