On windows machine which I use for development purpose, I did use some software like primocache which cache the disk and the files are loaded from ram (if I setup the drive). This way my program is loading in second and things going a little faster.
Now I have ubuntu in my system (no dual boot). I see it's only consuming 3GB out of 12GB. Is ubuntu use the other ram part to cache the thing like SuperFetch (sysMain) does in Windows 10. Did I need to setup anything or ubuntu is clever enough to take the ram that I am not using for cache the things.
Are these ram going to wasted or I am just thinking the wrong way. Someone confirm that Ubuntu use extra ram for cache the stuff (Like Superfetch)
Thanks