I'm out of the game for some time, sorry.
My Lubuntu installation crashed and does not start anymore, and I
don't have several hours to do a complete reinstall, it is painfully
slow on such machine. I hope, however, I'll be able to do some testing
on a virtual machine next week. It will definitely be faster than
ages-old Celeron, so no "responsiveness" observations possible, but I
still can see the memory usage numbers.
And yes, the memory usage numbers are reported while hovering over the
memory bar in taskmanager.
Sincerely,
Mikhail
