I've got a couple nodes (running inside VM on a s390) that are using
up every bit of there swap, yet only using a 1/3 to 1/2 there memory
(-buffers/cache).
Here is free -m from a node:
$ free -m
total used free shared buffers cached
Mem: 1008 1002 5 0 98 514
-/+ buffers/cache: 390 618
Swap: 99 93 6
So out of 1008MB total memory we're only using 390, Not to bad. But it
does seem kinda bad when you look at it as you have 514MB in cache but
your almost out of swap.
But then again swap is only 1/10th the size of memory so maybe its not
that much in swap.
This leads to my 2 questions.
1 Why am i using any swap when i have so much memory free? (and is
that a problem, if so would adding more memory even help? How about
more swap?)
2 How do i tell whats in swap anyway. like a lot of memory management
stuff there doesn't seem to be a easy way to tell.
Eli
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