Raring % memory seems to vary from boot to boot. It was 30% then I rebooted now it is 20%. Not doing much except 4 tabs open and making this message. Seems to keep on at 20% no matter whether it is doing much or not.
I'm keeping an eye on it.
Linux dale-desktop 3.7.0-030700rc4-generic #201211041435 SMP Sun Nov 4 19:43:27 UTC 2012 i686 i686 i686 GNU/Linux
you seems to dream a little
you cant get 0% or even 7 % with all that stuff refreshing in a loop
simply unplug or deactivate the network, and you'll see the difference
On my other machine 151MB with only 3 tabs opened. ff is really hogging the memory, not usual.