I have a machine with 64 GB of RAM and I would like to be able to take full advantage of it in Ubuntu.
Is there any application or way to achieve this? I mean something that leaves loaded in RAM applications or processes to run very fast.
Thank you.
You could try to use RAM-disk, but that is generally a very poor idea.
In principle, Ubuntu is already taking advantage of your memory. It allocates so-called cache to load applications and data from RAM instead of much slower storage (SSD/HDD).