diff --git a/clients/client-linux.py b/clients/client-linux.py
index d96a670..39a2730 100755
--- a/clients/client-linux.py
+++ b/clients/client-linux.py
@@ -214,6 +214,7 @@ def _net_speed():
         time.sleep(INTERVAL)
 
 def _disk_io():
+    # todo, 这里希望能有人贡献下代码
     diskIO["read"] = 0
     diskIO["write"] = 0