I need more explanation of "free -m" linux command.
[root@xxxxxx /]# free -t -m
total used free shared buffers cached
Mem: 2026 1817 208 0 404 1035
-/+ buffers/cache: 377 1648
Swap: 2047 17 2030
Total: 4074 1835 2238
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As shown, we have 2G total, 1.8G used and 208 Megs free. Everybody will say that we need RAM, but
inline total : 4G total, 1.8G used, 2.2G free, so do I really need more memory ?
Is it good to use swap memory ?
We ask this question because the server is suddenly slow.
see this image ( Plesk shows 40% of memory used ) ?
That being said. If you are bumping up that close to physical ram, you probably would benefit from adding some.
As an aside, to find out more information on any linux command, look at the manual. You can access the manual by typing:
# man [application]
# man free
hth - flub