diff --git a/install_shell/get_max_mem_process.sh b/install_shell/get_max_mem_process.sh
index 0a3cf1b..b37a58c 100755
--- a/install_shell/get_max_mem_process.sh
+++ b/install_shell/get_max_mem_process.sh
@@ -1,11 +1,14 @@
 #!/bin/bash
 SWAP_USED=$(free |grep -i swap|awk '{print $3}')
 SWAP_TOTAL=$(free |grep -i swap|awk '{print $2}')
+if [ ${SWAP_TOTAL} -eq 0 ];then
+	exit 0
+fi
 printf -v SWAP_USED_PERCENTAGE "%0.3f\n" $(echo "scale=5;$SWAP_USED/$SWAP_TOTAL * 100"|bc)
 #echo ${SWAP_USED_PERCENTAGE}
 SWAP_USED_PERCENTAGE_INT=$(echo ${SWAP_USED_PERCENTAGE}|awk -F. '{print $1}')
 #echo ${SWAP_USED_PERCENTAGE_INT}
-if [ ${SWAP_USED_PERCENTAGE_INT} -ge 20 ];then
+if [ ${SWAP_USED_PERCENTAGE_INT} -ge 30 ];then
 	date>>/var/log/messages
 	echo "rss(KB) pmem%M pcpu%C vsize(SWAP+RES,KB) process ">>/var/log/messages
 	ps -eo rss,pmem,pcpu,vsize,args |  sort -k 1 -r -n|head -10>>/var/log/messages