diff --git a/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/ui/viewmodel/DefaultVMModelProxyStrategy.java b/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/ui/viewmodel/DefaultVMModelProxyStrategy.java
index 66238fce289..c95342532d9 100644
--- a/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/ui/viewmodel/DefaultVMModelProxyStrategy.java
+++ b/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/ui/viewmodel/DefaultVMModelProxyStrategy.java
@@ -510,6 +510,11 @@ public class DefaultVMModelProxyStrategy implements IVMModelProxy {
 		// is have the CONTENT flag applied to the first ancestor delta that has
 		// something other than IModelDelta.STATE.
         //
+        // The main benefit of this optimization is that the viewer is left 
+        // to retrieve the elements that need to be refreshed, rather 
+        // than having this proxy do it.  Since the viewer is lazy loading
+        // it may need to retrieve as many elements in the hierarchy.
+        //
         // For example: suppose the model looks like:
         // A-
         // |-1