HI

1. When user is logged-in and viewing some views , portlets.
we have captured the memory usage using tools.

2. then the user is idle for 2 hours.(here no session deactivation done since it is admin type of users).
here once again the memory usage is captured.
This time liferay is taking more memory tough user was idle for 2 hours.
in specific hibernate is using more memory ..

my questions:
when will hibernate do the garbage collections?? and why lot of objects are in heap??
why it is taking more memory though the user is idle??


Note : Customization Done :
By default some views (say 5) will be created based on users and some portlets will added to that views(say 8 no).
All the portlets contents are refreshed periodically using ajax.

can any one explain??

Thanks
Velmurugan