Use visualvm to find portal bottleneck

We have a liferay portal runnin开发者_运维百科g on our intranet.

Everything works fine except the login. Very slow.

I'm thinking of using visualvm to monitor tomcat thread to see what happen in my webserver (like what hook it's calling or does it make some request to our active directory...)

Can I do it with visualvm? If not is there any other way?

I would look to see if you can increase the logging levels as you do the test and see if the logs show anything more specific. If the threads are simply waiting on a response from the active directory I doubt that visualvm will show you anything. One thing it might show you is that the thread is waiting.

I'd think about a network traffic monitor, like Fiddler.