diff --git a/apct-tests/perftests/windowmanager/src/android/wm/RelayoutPerfTest.java b/apct-tests/perftests/windowmanager/src/android/wm/RelayoutPerfTest.java
index 1be68f5d53a44..44e6c702fd90e 100644
--- a/apct-tests/perftests/windowmanager/src/android/wm/RelayoutPerfTest.java
+++ b/apct-tests/perftests/windowmanager/src/android/wm/RelayoutPerfTest.java
@@ -22,6 +22,7 @@ import android.app.Activity;
 import android.content.Context;
 import android.graphics.Point;
 import android.os.RemoteException;
+import android.os.SystemClock;
 import android.perftests.utils.BenchmarkState;
 import android.perftests.utils.PerfStatusReporter;
 import android.perftests.utils.PerfTestActivity;
@@ -124,6 +125,12 @@ public class RelayoutPerfTest extends WindowManagerPerfTestBase
     }
 
     private static class RelayoutRunner {
+        /**
+         * There may be some messages post to other threads with holding WM lock after relayout.
+         * Let it take a break to avoid lock contention that isn't the scope of this test.
+         */
+        private static final long INTERVAL_MS = 10;
+
         final ClientWindowFrames mOutFrames = new ClientWindowFrames();
         final MergedConfiguration mOutMergedConfiguration = new MergedConfiguration();
         final InsetsState mOutInsetsState = new InsetsState();
@@ -158,6 +165,9 @@ public class RelayoutPerfTest extends WindowManagerPerfTestBase
                         mViewVisibility.getAsInt(), mFlags, mFrameNumber, mOutFrames,
                         mOutMergedConfiguration, mOutSurfaceControl, mOutInsetsState, mOutControls,
                         mOutSurfaceSize);
+                state.pauseTiming();
+                SystemClock.sleep(INTERVAL_MS);
+                state.resumeTiming();
             }
         }
     }