diff --git a/src/p1st/exec_consume_chunks.py b/src/p1st/exec_consume_chunks.py
index a63fcff..5719a32 100644
--- a/src/p1st/exec_consume_chunks.py
+++ b/src/p1st/exec_consume_chunks.py
@@ -73,6 +73,7 @@ def _stdin_worker(queue_get: Queue.get,
         binary_stdin.write(chunk)
         # binary_stdin.flush()  # TODO: is this required?
 
+        # TODO: print total transfer speed and last chunk transfer speed
         current_time = time.time()
         elapsed_time = current_time - start_time
         transferred_bytes += len(chunk)