Skip Morrow wrote:
I had noticed that I didn't have much free memory a few days ago (I had
384M RAM installed) so I went and bought another 256 and installed it
(totalling 640M) Restarted the computer and saw that I was only using
20% of the RAM. But after a few hours, I noticed that the little gnome
bar graph was getting pretty high, so I rechecked and it was up to 85%.
...
> Here's the SHIFT-SCRLK output
That output isn't terribly useful in this case... just 'free' is fine:
$ free
total used free shared buffers cached
Mem: 513784 501956 11828 0 96656 249480
-/+ buffers/cache: 155820 357964
Swap: 1044216 16108 1028108
That's the output from my machine. As you can see, I have 512MB
installed, and 500MB are used. However, of that 500, only 155MB
are used by applications (see the second line). All the rest of
the memory used is used for disk buffers and cache. When memory
is needed, cache can be reclaimed immediately; disk buffers will
only need to be written to the disk. None of that will use swap
space.
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