diff --git a/apps/examples/circle-raster/game.c b/apps/examples/circle-raster/game.c
index b5d7e62..32e3935 100644
--- a/apps/examples/circle-raster/game.c
+++ b/apps/examples/circle-raster/game.c
@@ -13,6 +13,53 @@
         for (float x = p_center_x - ceilf(sqrtf(p_radius * p_radius - (y - p_center_y + (y <= p_center_y)) * (y - p_center_y + (y <= p_center_y)))); x < p_center_x + ceilf(sqrtf(p_radius * p_radius - (y - p_center_y + (y <= p_center_y)) * (y - p_center_y + (y <= p_center_y)))); ++x)
 
 
+static int32_t ceil_sqrt(int32_t const n) {
+    int32_t res = 1;
+    #pragma clang loop unroll_count(8)
+    while(res * res < n)
+        res++;
+    return res;
+}
+
+
+static void benchmark(struct state *state) {
+    volatile float x, y;
+
+    profile_start("float");
+
+    for (int i = 0; i < 1000; ++i) {
+        float const rs = state->r * state->r;
+        float const cr = ceilf(state->r);
+        for (float iy = -cr; iy <= cr - 1; ++iy) {
+            float const dx = ceilf(sqrtf(rs - (iy + (iy <= 0)) * (iy + (iy <= 0))));
+            for (float ix = -dx; ix < dx; ++ix) {
+                x = ix;
+                y = iy;
+            }
+        }
+    }
+
+    profile_end("float");
+
+    profile_start("int32_t");
+
+    for (int i = 0; i < 1000; ++i) {
+        int32_t const rsi = (int32_t)state->r * (int32_t)state->r;
+        for (int32_t iy = -(int32_t)state->r; iy <= (int32_t)state->r - 1; ++iy) {
+            int32_t const dx = ceil_sqrt(rsi - (iy + (iy <= 0)) * (iy + (iy <= 0)));
+            for (int32_t ix = -dx; ix < dx; ++ix) {
+                x = (float)ix;
+                y = (float)iy;
+            }
+        }
+    }
+
+    profile_end("int32_t");
+
+    (void)x; (void)y;
+}
+
+
 void game_tick(void) {
     if (ctx.initialization_needed) {
         if (!ctx.udata) {
@@ -34,16 +81,17 @@ void game_tick(void) {
     if (input_action_just_pressed("down"))
         state->r -= 1;
 
-    float const rs = state->r * state->r;
-    float const cr = ceilf(state->r);
-    for (float iy = cr - 1; iy > -cr - 1; --iy) {
-        float const dx = ceilf(sqrtf(rs - (iy + (iy <= 0)) * (iy + (iy <= 0))));
-        for (float ix = -dx; ix < dx; ++ix) {
-            draw_box((Rect){mouse_snap.x + ix * 8, mouse_snap.y + iy * 8, 8, 8}, 1, (Color){255, 0, 0, 125});
+    int32_t const rsi = (int32_t)state->r * (int32_t)state->r;
+    for (int32_t iy = -(int32_t)state->r; iy <= (int32_t)state->r - 1; ++iy) {
+        int32_t const dx = ceil_sqrt(rsi - (iy + (iy <= 0)) * (iy + (iy <= 0)));
+        for (int32_t ix = -dx; ix < dx; ++ix) {
+            draw_box((Rect){mouse_snap.x + (float)ix * 8, mouse_snap.y + (float)iy * 8, 8, 8}, 1, (Color){125, 125, 0, 255});
         }
     }
 
     draw_circle(mouse_snap, state->r * 8, (Color){125, 125, 125, 125});
+
+    benchmark(state);
 }