I just installed Kubuntu 15.04, installed VLC, Chrome and configured some settings then ran sudo apt-get upgrade
to upgrade the system and noticed that 2.6 GB of ram is being used! (and 3.4 GB while running Chrome).
Is that normal for the system? will it slow it down when doing more heavy multitasking? why isn't it using any swap to lower the load on the memory?
free
terminal command.