diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 147a5d6..b7c0bb3 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -7731,6 +7731,7 @@
 
 ssize_t DuplicatingThread::threadLoop_write()
 {
+    ATRACE_BEGIN("write");
     for (size_t i = 0; i < outputTracks.size(); i++) {
         const ssize_t actualWritten = outputTracks[i]->write(mSinkBuffer, writeFrames);
 
@@ -7749,6 +7750,7 @@
 
         // TODO: Report correction for the other output tracks and show in the dump.
     }
+    ATRACE_END();
     if (mStandby) {
         mThreadMetrics.logBeginInterval();
         mThreadSnapshot.onBegin();