system folder in memory device

[eluser]rogierb[/eluser]
I have been wondering if anyone has done something like this and even is it's possible.
What would be downside and what would be the gain?

First off the system folder should be out of root and copied into for instance /dev/shm/system. Or maybe create a new mount like /var/www/system?


Anyone has any thoughts if this would/could work? If it works theoretically the increase should be quite noticable.