diff --git a/core/java/android/view/Choreographer.java b/core/java/android/view/Choreographer.java index 60593ca46bcba..77591a7efb5e3 100644 --- a/core/java/android/view/Choreographer.java +++ b/core/java/android/view/Choreographer.java @@ -765,18 +765,24 @@ public final class Choreographer { startNanos = System.nanoTime(); final long jitterNanos = startNanos - frameTimeNanos; if (jitterNanos >= frameIntervalNanos) { - final long skippedFrames = jitterNanos / frameIntervalNanos; - if (skippedFrames >= SKIPPED_FRAME_WARNING_LIMIT) { - Log.i(TAG, "Skipped " + skippedFrames + " frames! " - + "The application may be doing too much work on its main thread."); - } final long lastFrameOffset = jitterNanos % frameIntervalNanos; - if (DEBUG_JANK) { - Log.d(TAG, "Missed vsync by " + (jitterNanos * 0.000001f) + " ms " - + "which is more than the frame interval of " - + (frameIntervalNanos * 0.000001f) + " ms! " - + "Skipping " + skippedFrames + " frames and setting frame " - + "time to " + (lastFrameOffset * 0.000001f) + " ms in the past."); + if (frameIntervalNanos == 0) { + Log.i(TAG, "Vsync data empty due to timeout"); + } else { + final long skippedFrames = jitterNanos / frameIntervalNanos; + if (skippedFrames >= SKIPPED_FRAME_WARNING_LIMIT) { + Log.i(TAG, "Skipped " + skippedFrames + " frames! " + + "The application may be doing too much work on its main " + + "thread."); + } + if (DEBUG_JANK) { + Log.d(TAG, "Missed vsync by " + (jitterNanos * 0.000001f) + " ms " + + "which is more than the frame interval of " + + (frameIntervalNanos * 0.000001f) + " ms! " + + "Skipping " + skippedFrames + " frames and setting frame " + + "time to " + (lastFrameOffset * 0.000001f) + + " ms in the past."); + } } frameTimeNanos = startNanos - lastFrameOffset; DisplayEventReceiver.VsyncEventData latestVsyncEventData =