I have a low profile machine but with a lot of fast RAM, 4 Gb, which is really an amount of memory that i probably will never use, not even an half, since i just use this machine for coding and browsing the web.
The HDD is really slow and so the overall performance are bad when booting, caching or starting new program, I'm wondering if Ubuntu can provide some setting or utility to solve this situation and let my system rely more on the RAM usage.
Best Answer
You should install Preload which will preload the software you use the most in your RAM (it'll learn which software to preload on its own). That's very easy to setup:
You probably don't need to touch it, but if you want you can edit the options in
/etc/preload.conf