I run free -m on SLES9 SP3 once a week and don't know whether it's
telling me linux is using more and more swap space or not. Any
explanations would be appreciated; the man page doesn't explain the
columns.
Here's sample outpout from free -m at done at one week intervals.
The "total" "used" and "free" columns for the "Swap:" line are what I'm
asking about.
The "used" numbers are increasing, the "free" numbers decreasing, they
add up to the "total"; I also run command "vmstat -S M" and its swap
"si' and "so" columns always say 0, making me think the swapping/sec is
so low as to be reported as 0.
free -m (on 12/27/06)
total used free shared buffers
cached
Mem: 247 243 3 0 9
17
-/+ buffers/cache: 216 30
Swap: 70 60 9
-------------------------------------------
free -m (on 1/3/07)
total used free shared buffers
cached
Mem: 247 242 5 0 6
22
-/+ buffers/cache: 212 34
Swap: 70 63 6
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