diff --git a/config.ini b/config.ini
index 5b1ee877..0a5a6bea 100644
--- a/config.ini
+++ b/config.ini
@@ -20,7 +20,7 @@ vlan_strip=1
 
 # sleep when no pkts incomming
 # unit: microseconds
-idle_sleep=100
+idle_sleep=0
 
 # enabled port list
 #