The VM has 2G RAM. Xeams WEB interface shows MB Allocated 932

I have found https://www.xeams.com/howmuchcaniallocate.htm

My run.sh file (also AppConfig.xml) already has Xmx2048m

#!/bin/bash
#This script all files found in the lib directory in CLASSPATH
CP=
for i in `ls lib/*.jar`
do
CP=$CP:$i
done
echo $CP
ulimit -n 8192
jre/bin/java -server -Xmx2048m -cp $CP -DLoggingConfigFile=logconfig.xml com.synametrics.xeams.ServerStarter &

Why the server has been ran with Xmx2048m and still show 932MB?