2 files changed, 4 insertions, 1 deletions
diff --git a/libs/hwui/JankTracker.cpp b/libs/hwui/JankTracker.cpp
index d25fc4b0b03e..b2c39c90071a 100644
--- a/libs/hwui/JankTracker.cpp
+++ b/libs/hwui/JankTracker.cpp
@@ -139,6 +139,9 @@ void JankTracker::finishFrame(const FrameInfo& frame) {
         (*mGlobalData)->reportJank();
     }
 
+    if (mSwapDeadline < 0) {
+        mSwapDeadline = frame[FrameInfoIndex::IntendedVsync] + mFrameInterval;
+    }
     bool isTripleBuffered = (mSwapDeadline - frame[FrameInfoIndex::IntendedVsync]) > (mFrameInterval * 0.1);
 
     mSwapDeadline = std::max(mSwapDeadline + mFrameInterval,
diff --git a/libs/hwui/JankTracker.h b/libs/hwui/JankTracker.h
index 4460266276f9..b3fbbfe98669 100644
--- a/libs/hwui/JankTracker.h
+++ b/libs/hwui/JankTracker.h
@@ -75,7 +75,7 @@ private:
 
     std::array<int64_t, NUM_BUCKETS> mThresholds;
     int64_t mFrameInterval;
-    nsecs_t mSwapDeadline;
+    nsecs_t mSwapDeadline = -1;
     // The amount of time we will erase from the total duration to account
     // for SF vsync offsets with HWC2 blocking dequeueBuffers.
     // (Vsync + mDequeueBlockTolerance) is the point at which we expect