code: private void logSlowRequests(long requestLifetime, Request<?> request,
              byte[] responseContents, StatusLine statusLine) {
          if (DEBUG || requestLifetime > SLOW_REQUEST_THRESHOLD_MS) {
              VolleyLog.d("HTTP response for request=<%s> [lifetime=%d], [size=%s], " +
                      "[rc=%d], [retryCount=%s]", request, requestLifetime,
                      responseContents != null ? responseContents.length : "null",
                      statusLine.getStatusCode(), request.getRetryPolicy().getCurrentRetryCount());
          }
      }
docs: Logs requests that took over SLOW_REQUEST_THRESHOLD_MS to complete.