From Jobs

Assets/Script/FrameRateCounter.cs

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+using UnityEngine;
+using TMPro;
+
+public class FrameRateCounter : MonoBehaviour
+{
+    [SerializeField]
+    TextMeshProUGUI display = default;
+
+    public enum DisplayMode { FPS, MS };
+
+    [SerializeField]
+    DisplayMode displayMode = DisplayMode.FPS;
+
+    [SerializeField, Range(0.1f, 2.0f)]
+    float sampleDuration = 1.0f;
+
+    int frames;
+
+    float duration;
+    float bestDuration = float.MaxValue;
+    float worstDuration = 0.0f;
+
+    private void Update()
+    {
+        var frameDuration = Time.unscaledDeltaTime;
+        frames++;
+        duration += frameDuration;
+
+        if (frameDuration < bestDuration)
+        {
+            bestDuration = frameDuration;
+        }
+        if (frameDuration > worstDuration)
+        {
+            worstDuration = frameDuration;
+        }
+
+        if (duration >= sampleDuration)
+        {
+            if (displayMode == DisplayMode.FPS)
+            {
+                display.SetText(
+                    "FPS\n{0:0}\n{1:0}\n{2:0}",
+                    1.0f / bestDuration,
+                    frames / duration,
+                    1.0f / worstDuration
+                );
+            }
+            else
+            {
+                display.SetText(
+                    "FPS\n{0:1}\n{1:1}\n{2:1}",
+                    1000.0f * bestDuration,
+                    1000.0f * duration / frames,
+                    1000.0f * worstDuration
+                );
+            }
+
+            frames = 0;
+            duration = 0.0f;
+            bestDuration = float.MaxValue;
+            worstDuration = 0.0f;
+        }
+    }
+
+}