diff --git a/README.md b/README.md
index f100aa026..9db3cc4b0 100755
--- a/README.md
+++ b/README.md
@@ -572,6 +572,7 @@ Remark:
 (b) The CLI architecture is similar to this, instead, cli process
     will collect informations from all stream process, master process
     only send signals to child processes.
+(c) Maybe multiple thread is ok? By winlin.
 </pre>
 
 ### Bandwidth Test Workflow