Hey,
I'm wondering about the memory usage on my rootserver and have some
basic questions.
free -m:
total used free shared buffers
cached
Mem: 1003 928 75 0 311
75
-/+ buffers/cache: 540 462
Swap: 2047 0 2047
So I have a total of 1003m, with 540m currently used.
I'm running 2 mongrel servers, nginx and postgres which shouldn't be
very much.
top reports (RES column)
2 mongrels, each around 60 mb (somehow htop reports somehow 4
mongrels, but as I read this is a different story)
1 postmaster process (postgres) around 10mb
and a couple of smaller processes.
If I sum up the RES column in htop, its around 180m
Munin report for the memory usage (curr)
apps: 145m
My question:
I don't fully understand that, I thought the free -m value of 540m is
the actually used memory? But this seems way too high to me, 50%
actually used.
Can anyone please give some explanations?
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