Others have expanded a bit, but it depends on what you're running it on, a tmpfs setup is your friend on linux and even for windows there are free alternatives

Others have expanded a bit, but it depends on what you're running it on, a tmpfs setup is your friend on linux and even for windows there are free alternatives :) Of course you will probably want to incorporate something that copies the ramdisk contents to somewhere a little more permanent ever so often, set an interval you're comfortable with losing data within! (but given the huge improvement i'd say it is worth it!)