diff --git a/platform/platform-impl/src/com/intellij/openapi/progress/util/PotemkinProgress.java b/platform/platform-impl/src/com/intellij/openapi/progress/util/PotemkinProgress.java
index 0d33a12c1479..b78f1b570a4e 100644
--- a/platform/platform-impl/src/com/intellij/openapi/progress/util/PotemkinProgress.java
+++ b/platform/platform-impl/src/com/intellij/openapi/progress/util/PotemkinProgress.java
@@ -67,8 +67,11 @@ public class PotemkinProgress extends ProgressWindow {
 
   public void interact() {
     if (ApplicationManager.getApplication().isDispatchThread()) {
-      dispatchAwtEventsWithoutModelAccess(0);
-      updateUI();
+      long now = System.currentTimeMillis();
+      if (shouldDispatchAwtEvents(now)) {
+        dispatchAwtEventsWithoutModelAccess(0);
+      }
+      updateUI(now);
     }
   }
 
@@ -87,6 +90,14 @@ public class PotemkinProgress extends ProgressWindow {
     }
   }
 
+  private long myLastShouldDispatchCheck = 0;
+  private boolean shouldDispatchAwtEvents(long now) {
+    if (now == myLastShouldDispatchCheck) return false;
+
+    myLastShouldDispatchCheck = now;
+    return getDialog().getPanel().isShowing();
+  }
+
   private void dispatchInputEvent(InputEvent e) {
     if (isCancellationEvent(e)) {
       cancel();
@@ -104,20 +115,20 @@ public class PotemkinProgress extends ProgressWindow {
     return dialogWindow instanceof JDialog && SwingUtilities.isDescendingFrom(source, dialogWindow);
   }
 
-  private void updateUI() {
+  private void updateUI(long now) {
     JRootPane rootPane = getDialog().getPanel().getRootPane();
     if (rootPane == null) {
-      rootPane = considerShowingDialog();
+      rootPane = considerShowingDialog(now);
     }
 
-    if (rootPane != null && timeToPaint()) {
+    if (rootPane != null && timeToPaint(now)) {
       paintProgress();
     }
   }
 
   @Nullable
-  private JRootPane considerShowingDialog() {
-    if (System.currentTimeMillis() - myLastUiUpdate > DEFAULT_PROGRESS_DIALOG_POSTPONE_TIME_MILLIS) {
+  private JRootPane considerShowingDialog(long now) {
+    if (now - myLastUiUpdate > DEFAULT_PROGRESS_DIALOG_POSTPONE_TIME_MILLIS) {
       getDialog().myRepaintRunnable.run();
       showDialog();
       return getDialog().getPanel().getRootPane();
@@ -125,8 +136,7 @@ public class PotemkinProgress extends ProgressWindow {
     return null;
   }
 
-  private boolean timeToPaint() {
-    long now = System.currentTimeMillis();
+  private boolean timeToPaint(long now) {
     if (now - myLastUiUpdate <= ProgressDialog.UPDATE_INTERVAL) {
       return false;
     }
@@ -172,7 +182,7 @@ public class PotemkinProgress extends ProgressWindow {
 
       while (isRunning()) {
         dispatchAwtEventsWithoutModelAccess(10);
-        updateUI();
+        updateUI(System.currentTimeMillis());
       }
     }
     finally {