Why isn´t linux using all the available memory

Posted by Devator on Super User See other posts from Super User or by Devator
Published on 2012-07-01T00:57:32Z Indexed on 2012/07/01 3:18 UTC
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I have a linux VPS which has 256 MB of memory (free only finds 248 though). However it seems I still have 85 MB free, but it's swapping for 255 MB. Why is this?

free -m

              total       used       free     shared    buffers     cached
Mem:           248        245          3          0         41         40
-/+ buffers/cache:        163         85
Swap:         1971        255       1716

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