diff --git a/package/lean/autocore/Makefile b/package/lean/autocore/Makefile
index 5a3ea11321..207bfced80 100644
--- a/package/lean/autocore/Makefile
+++ b/package/lean/autocore/Makefile
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=autocore
 PKG_VERSION:=1
-PKG_RELEASE:=29
+PKG_RELEASE:=30
 
 
 include $(INCLUDE_DIR)/package.mk
diff --git a/package/lean/autocore/files/sbin/getcpu b/package/lean/autocore/files/sbin/getcpu
index 4541477022..61e8d6ee43 100755
--- a/package/lean/autocore/files/sbin/getcpu
+++ b/package/lean/autocore/files/sbin/getcpu
@@ -1,7 +1,8 @@
 #!/bin/sh
 
-AT=$(cat /proc/stat | grep "^cpu " | awk '{print $2+$3+$4+$5+$6+$7+$8 " " $2+$3+$4+$7+$8}')
-sleep 3
-BT=$(cat /proc/stat | grep "^cpu " | awk '{print $2+$3+$4+$5+$6+$7+$8 " " $2+$3+$4+$7+$8}')
-
-printf "%.01f%%" $(echo $AT $BT | awk '{print (($4-$2)/($3-$1))*100}') >/tmp/cpuusage
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+if [ $(busybox ps -w | grep getcpu | grep -v grep | wc -l) -le 2 ]; then
+  AT=$(cat /proc/stat | grep "^cpu " | awk '{print $2+$3+$4+$5+$6+$7+$8 " " $2+$3+$4+$7+$8}')
+  sleep 1
+  BT=$(cat /proc/stat | grep "^cpu " | awk '{print $2+$3+$4+$5+$6+$7+$8 " " $2+$3+$4+$7+$8}')
+  printf "%.01f%%" $(echo $AT $BT | awk '{print (($4-$2)/($3-$1))*100}') >/tmp/cpuusage
+fi
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