perf

flake.nix

@@ -51,6 +51,8 @@
           clang
           trunk
           binaryen
+          hotspot
+          linuxKernel.packages.linux_6_6.perf
         ];
 
         LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath buildInputs;

src/main.rs

@@ -25,11 +25,11 @@ enum PausedState {
 
 fn main() {
     let rapier_config = RapierConfiguration {
-        scaled_shape_subdivision: 10,
+        scaled_shape_subdivision: 2,
         timestep_mode: TimestepMode::Variable {
             max_dt: 0.5,
             time_scale: 1.0,
-            substeps: 20,
+            substeps: 10,
         },
         gravity: Vec2::new(0.0, -9.81 * METER),
         physics_pipeline_active: true,