diff --git a/install_shell/get_max_mem_process.sh b/install_shell/get_max_mem_process.sh
index 439caf3..588a44c 100755
--- a/install_shell/get_max_mem_process.sh
+++ b/install_shell/get_max_mem_process.sh
@@ -1,9 +1,9 @@
 #!/bin/bash
-swap=$(free -g|grep "^Swap:"|awk '{print $3}')
+swap_percentage=$( free | grep '^Swap:' | awk '{ if ($2 != 0) {print ($3/$2*100)} else {print 0} }')
 thread_num=$( top -b -H -n 1|grep "^Tasks:"|awk '{print $2}')
 
-# swap >= 3G or thread_num >= 1800
-if [ ${swap} -ge 3 -o ${thread_num} -ge 1800 ];then
+# swap >= 10% or thread_num >= 1800
+if [ $(echo ${swap_percentage} '>' 10 |bc ) -eq 1 -o ${thread_num} -ge 1800  ];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