计量改到小数点后2位，计量单位改B/KB/M\n unity2018.3之后的版本支持

Project/Assets/Editor/ExtractMemoryEditor.cs

@@ -16,8 +16,13 @@ public class ExtractMemoryEditor: EditorWindow
     [MenuItem("Window/Extract Profiler Memory")]
     public static void ShowWindow()
     {
+#if UNITY_2018_3_OR_NEWER
+        EditorApplication.ExecuteMenuItem("Window/Analysis/Profiler");
+#else
         EditorApplication.ExecuteMenuItem("Window/Profiler");
-        if (Window == null)
+#endif
+
+        if(Window == null)
         {
             Window = CreateInstance<ExtractMemoryEditor>();
         }

Project/Assets/Editor/MemoryElement.cs

@@ -25,6 +25,10 @@ public static MemoryElement Create(Dynamic srcMemoryElement, int depth, int filt
         var dstMemoryElement = new MemoryElement { _depth = depth };
         Dynamic.CopyFrom(dstMemoryElement, srcMemoryElement.InnerObject,
             BindingFlags.Instance | BindingFlags.Public | BindingFlags.GetField);
+        if (dstMemoryElement.name == null)
+        {
+            dstMemoryElement.name = "";
+        }
 
         var srcChildren = srcMemoryElement.PublicInstanceField<IList>("children");
         if (srcChildren == null) return dstMemoryElement;
@@ -44,28 +48,30 @@ public static MemoryElement Create(Dynamic srcMemoryElement, int depth, int filt
 
     public override string ToString()
     {
-        var text = string.IsNullOrEmpty(name) ? "-" : name;
-        var text2 = "KB";
-        var num = totalMemory / 1024f;
-        if (num > 512f)
+        var displayName = string.IsNullOrEmpty(name) ? "-" : name;
+        string numText = null;
+        if (totalMemory < 1024)
         {
-            num /= 1024f;
-            text2 = "MB";
+            numText = totalMemory.ToString() + "B";
         }
-
-        var resultString = string.Format(new string('\t', _depth) + " {0}, {1}{2}", text, num, text2);
-        return resultString;
+        else if(totalMemory < 1024 * 1024)
+        {
+            numText = (totalMemory / 1024f).ToString("F2") + "KB";
+        }
+        else
+        {
+            numText = (totalMemory / (1024 * 1024f)).ToString("F2") + "MB";
+        }
+        return $"{new string('\t', _depth)}{displayName}, {numText}";
     }
 
     public int CompareTo(MemoryElement other)
     {
         if (other.totalMemory != totalMemory)
         {
-            return (int) (other.totalMemory - totalMemory);
+            return other.totalMemory.CompareTo(totalMemory);
         }
 
-        if (string.IsNullOrEmpty(name)) return -1;
-        return !string.IsNullOrEmpty(other.name) ? string.Compare(name, other.name, StringComparison.Ordinal) : 1;
-
+        return other.name.CompareTo(name);
     }
 }

Project/Assets/Editor/ProfilerWindow.cs

@@ -7,6 +7,7 @@
 using UnityEditor;
 using UnityEditorInternal;
 using UnityEngine;
+using UnityEngine.Profiling;
 
 public static class ProfilerWindow
 {
@@ -40,7 +41,17 @@ public static MemoryElement GetMemoryDetailRoot(int filterDepth, float filterSiz
     {
         var windowDynamic = _GetWindow(ProfilerArea.Memory);
         if (windowDynamic == null) return null;
-        var listViewDynamic = new Dynamic(windowDynamic.PrivateInstanceField("m_MemoryListView"));
+        Dynamic listViewDynamic = null;
+
+#if UNITY_2018_3_OR_NEWER
+        var modules = new Dynamic(windowDynamic.PrivateInstanceField("m_ProfilerModules"));
+        var enumerable = modules.InnerObject as IList;
+        var memModule = enumerable[3];
+        var memModuleDyc = new Dynamic(memModule);
+        listViewDynamic = new Dynamic(memModuleDyc.PrivateInstanceField("m_MemoryListView"));
+#else
+        listViewDynamic = new Dynamic(windowDynamic.PrivateInstanceField("m_MemoryListView"));
+#endif
         var rootDynamic = listViewDynamic.PrivateInstanceField("m_Root");
         return rootDynamic != null ? MemoryElement.Create(new Dynamic(rootDynamic), 0, filterDepth, filterSize) : null;
     }