1 files changed, 11 insertions, 0 deletions
diff --git a/Assets/uGUI-2017.1/UnityEngine.UI/UI/Core/CanvasUpdateRegistry.cs b/Assets/uGUI-2017.1/UnityEngine.UI/UI/Core/CanvasUpdateRegistry.cs
index 6690060..ad6e8c2 100644
--- a/Assets/uGUI-2017.1/UnityEngine.UI/UI/Core/CanvasUpdateRegistry.cs
+++ b/Assets/uGUI-2017.1/UnityEngine.UI/UI/Core/CanvasUpdateRegistry.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using UnityEngine.UI.Collections;
+using System.Threading;
 
 namespace UnityEngine.UI
 {
@@ -110,12 +111,22 @@ namespace UnityEngine.UI
             }
         }
 
+        private void Foo()
+        {
+            GameObject go = GameObject.Find("Canvas");
+            UISystemProfilerApi.AddMarker("MaskableGraphic.cullingChanged", go);
+            Thread.Sleep(100);
+        }
+
         private static readonly Comparison<ICanvasElement> s_SortLayoutFunction = SortLayoutList;
         // 在渲染canvas之前对canvas下的元素进行rebuild
         // 进行 prelayout -> layout -> postlayout -> prerender -> LatePreRender 流程
         private void PerformUpdate()
         {
             UISystemProfilerApi.BeginSample(UISystemProfilerApi.SampleType.Layout);
+
+            Foo();
+
             CleanInvalidItems();
 
             m_PerformingLayoutUpdate = true;