diff --git a/services/surfaceflinger/DisplayHardware/DisplayHardware.cpp b/services/surfaceflinger/DisplayHardware/DisplayHardware.cpp
index 3e23929..bd348bf 100644
--- a/services/surfaceflinger/DisplayHardware/DisplayHardware.cpp
+++ b/services/surfaceflinger/DisplayHardware/DisplayHardware.cpp
@@ -310,6 +310,10 @@
     return mNativeWindow->compositionComplete();
 }
 
+int DisplayHardware::getCurrentBufferIndex() const {
+    return mNativeWindow->getCurrentBufferIndex();
+}
+
 void DisplayHardware::flip(const Region& dirty) const
 {
     checkGLErrors();
diff --git a/services/surfaceflinger/DisplayHardware/DisplayHardware.h b/services/surfaceflinger/DisplayHardware/DisplayHardware.h
index f2cfd2d..75b55df 100644
--- a/services/surfaceflinger/DisplayHardware/DisplayHardware.h
+++ b/services/surfaceflinger/DisplayHardware/DisplayHardware.h
@@ -89,6 +89,9 @@
         return Rect(mWidth, mHeight);
     }
 
+    // only for debugging
+    int getCurrentBufferIndex() const;
+
 private:
     void init(uint32_t displayIndex) __attribute__((noinline));
     void fini() __attribute__((noinline));
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index d820380..5a27fc5 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -38,6 +38,7 @@
 #include <utils/StopWatch.h>
 
 #include <ui/GraphicBufferAllocator.h>
+#include <ui/GraphicLog.h>
 #include <ui/PixelFormat.h>
 
 #include <pixelflinger/pixelflinger.h>
@@ -378,15 +379,24 @@
     const DisplayHardware& hw(graphicPlane(0).displayHardware());
     if (LIKELY(hw.canDraw() && !isFrozen())) {
         // repaint the framebuffer (if needed)
+
+        const int index = hw.getCurrentBufferIndex();
+        GraphicLog& logger(GraphicLog::getInstance());
+
+        logger.log(GraphicLog::SF_REPAINT, index);
         handleRepaint();
 
         // inform the h/w that we're done compositing
+        logger.log(GraphicLog::SF_COMPOSITION_COMPLETE, index);
         hw.compositionComplete();
 
+        logger.log(GraphicLog::SF_SWAP_BUFFERS, index);
         postFramebuffer();
 
+        logger.log(GraphicLog::SF_UNLOCK_CLIENTS, index);
         unlockClients();
 
+        logger.log(GraphicLog::SF_REPAINT_DONE, index);
     } else {
         // pretend we did the post
         unlockClients();
@@ -1560,8 +1570,7 @@
         int n;
         switch (code) {
             case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE
-                return NO_ERROR;
-            case 1001:  // SHOW_FPS, NOT SUPPORTED ANYMORE
+            case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE
                 return NO_ERROR;
             case 1002:  // SHOW_UPDATES
                 n = data.readInt32();
@@ -1582,6 +1591,11 @@
                 setTransactionFlags(eTransactionNeeded|eTraversalNeeded);
                 return NO_ERROR;
             }
+            case 1006:{ // enable/disable GraphicLog
+                int enabled = data.readInt32();
+                GraphicLog::getInstance().setEnabled(enabled);
+                return NO_ERROR;
+            }
             case 1007: // set mFreezeCount
                 mFreezeCount = data.readInt32();
                 mFreezeDisplayTime = 0;