I have three Liferay portal
-- ApacheTomcat 7
running on a Dedicated server
(RAM : 32 , CPU 8 cores, 3.4 Ghz).
All portals are running on the same Mysql
instance.
The problem is the response of the server is incredibly SLOW (1 min to log in -- database encryption for password is SHA-512
) , and 30 sec to load a simple page.
It is the same problem for the three portals ( 3 websites ).
The web-server is IIS
running on windows server 2008 R2
.
The question is how to determine why the response is so slow .
Is there a way to test if it is a traffic or network problem or could it be just performance problem ?
any help will be highly appreciated.
Thanks.