Re: [K12OSN] Random logouts, inability to log in

["Dan Young" <dan_young parkrose k12 or us>]

Julius Szelagiewicz said:
> 	ok, i am beginnig to get the difference between "used but not
> really" and "free" memory. what has confused me is that all the
> unices i played with returned memory from user processes to the free
> pool right after log out.

The "free" command helped me grok this:

$ free -m
             total       used       free     shared    buffers     cached
Mem:           502        478         23          0         31        330
-/+ buffers/cache:        117        384
Swap:          517         18        499

This is a single login on FC 1, running gnome, mozilla, and a
gnome-terminal. 23 MB are free; 384 are being used for buffers/cache.
Neverwinter Nights must still be cached. ;-) As long as swap usage is
low, you're doing fine. If you really want to know what's using
memory, run top and press shift-M. Look at the RSS column.

-Dan Young
-Parkrose School District