title: looking for light-weight data persistence solution in perl
body: <p>In my app I need to store some simple data both in memroy and in disk. A real database will be overkill in my case, so I need lighter one to handle the simple data persistence requirement. I do some google search by myself, and found something interesting like DBM and DBI CVS, etc. but since there are too many options there so it is difficult for  me to make the actuaaly choice, so I'd like ask you here for the "best-practice" like  light-weight data perisistence solution in perl.</p>