%CPU usage increase

After upgrade to Cpanel 7.2.1_Release-92 , %CPU and memory usage on my server are always too high

User Domain %CPU %MEM Mysql Processes
mysql 4.43 86.03 0.0
Top Process %CPU 50.5 /usr/sbin/mysqld --basedir/ --datadir/var/lib/mysql --usermysql --pid-file/var/lib/mysql/maleo.mydnsclient.com.pid --skip-locking
Top Process %CPU 15.0 /usr/sbin/mysqld --basedir/ --datadir/var/lib/mysql --usermysql --pid-file/var/lib/mysql/maleo.mydnsclient.com.pid --skip-locking
Top Process %CPU 6.0 /usr/sbin/mysqld --basedir/ --datadir/var/lib/mysql --usermysql --pid-file/var/lib/mysql/maleo.mydnsclient.com.pid --skip-locking

Anyone can explain what happen here ?

And when user open neomail or AWstats, It alomst used about 60% CPU.

Today my server almost using 99% physical memory and also 100% disk swap. My server have 1 GB memory and also 2 GB swap.

I have seen that physical memory usage was always around 98%, Is it normal ?

Anyone can help ?

Best Regards

cPanel.net Support Ticket Number: