diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 40ab0af..04e8d3f 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -3116,8 +3116,10 @@
 #endif
             }
             state->mCommand = FastMixerState::MIX_WRITE;
+#ifdef FAST_THREAD_STATISTICS
             mFastMixerDumpState.increaseSamplingN(mAudioFlinger->isLowRamDevice() ?
                     FastMixerDumpState::kSamplingNforLowRamDevice : FastMixerDumpState::kSamplingN);
+#endif
             sq->end();
             sq->push(FastMixerStateQueue::BLOCK_UNTIL_PUSHED);
             if (kUseFastMixer == FastMixer_Dynamic) {