Timer: better histogram formatting. bin into 10% intervals instead of 5%

GitOrigin-RevId: 9729f04bd6

Shared/Timer.cs

@@ -8,7 +8,7 @@ namespace SemiColinGames {
     private readonly double targetTime;
     private readonly string name;
     private double startTime = 0.0;
-    private int[] histogram = new int[41];
+    private int[] histogram = new int[21];
     private int totalFrames = 0;
 
     public Timer(double targetTime, string name) {
@@ -25,7 +25,7 @@ namespace SemiColinGames {
       stopwatch.Stop();
       totalFrames++;
       double frameTime = stopwatch.Elapsed.TotalSeconds - startTime;
-      int bucket = FMath.Clamp((int) (5.0f * frameTime / targetTime), 0, 40);
+      int bucket = FMath.Clamp((int) (10.0f * frameTime / targetTime), 0, 20);
       histogram[bucket]++;
       if (totalFrames % 100 == 0) {
         DumpStats();
@@ -34,13 +34,20 @@ namespace SemiColinGames {
 
     public void DumpStats() {
       Debug.WriteLine(name + ".DumpStats():");
-      for (int i = 0; i < histogram.Length - 1; i++) {
+      for (int i = 0; i < histogram.Length; i++) {
         int value = histogram[i];
-        if (value > 0) {
-          Debug.WriteLine($"{i * 5}-{(i + 1) * 5}%: {histogram[i]}");
+        if (value == 0) {
+          continue;
         }
+        // Every star is one percent.
+        int numStars = FMath.Clamp(100 * value / totalFrames, 1, 100);
+        string prefix = String.Format("{0,3}-{1,3}%: ", i * 10, (i + 1) * 10);
+        if (i == histogram.Length - 1) {
+          prefix = "   200%+: ";
+        }
+        string stars = new string('*', numStars);
+        Debug.WriteLine(String.Format("{0}{1,-100} {2}", prefix, stars, value));
       }
-      Debug.WriteLine($"200+%: {histogram[histogram.Length - 1]}");
     }
   }
 }