diff --git a/src/main/java/com/android/volley/Request.java b/src/main/java/com/android/volley/Request.java
index 9832952..5b42d1f 100644
--- a/src/main/java/com/android/volley/Request.java
+++ b/src/main/java/com/android/volley/Request.java
@@ -90,12 +90,6 @@
     /** Whether or not a response has been delivered for this request yet. */
     private boolean mResponseDelivered = false;
 
-    // A cheap variant of request tracing used to dump slow requests.
-    private long mRequestBirthTime = 0;
-
-    /** Threshold at which we should log the request (even when debug logging is not enabled). */
-    private static final long SLOW_REQUEST_THRESHOLD_MS = 3000;
-
     /** The retry policy for this request. */
     private RetryPolicy mRetryPolicy;
 
@@ -209,8 +203,6 @@
     public void addMarker(String tag) {
         if (MarkerLog.ENABLED) {
             mEventLog.add(tag, Thread.currentThread().getId());
-        } else if (mRequestBirthTime == 0) {
-            mRequestBirthTime = SystemClock.elapsedRealtime();
         }
     }
 
@@ -241,11 +233,6 @@
 
             mEventLog.add(tag, threadId);
             mEventLog.finish(this.toString());
-        } else {
-            long requestTime = SystemClock.elapsedRealtime() - mRequestBirthTime;
-            if (requestTime >= SLOW_REQUEST_THRESHOLD_MS) {
-                VolleyLog.d("%d ms: %s", requestTime, this.toString());
-            }
         }
     }