Cacti graphs: What am I looking at??

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Cacti graphs: What am I looking at??

Postby bobthebob1234 » Wed Apr 18, 2012 9:08 am

So I have been playing around with cacti cos I'm interesting in what my servers are doing, mainly network traffic wise. That graph is pretty easy to understand.

I have these other graphs and I'm not too sure what I am looking at...

Image

So there are some interesting spikes here, but it is all very low (I assume) so I guess all is ok here. Don't know what the M represents though...

Image

No idea what is going on here, never really understood 'load'

Image

Server has 2gb of ram so height of graph makes sense, but not sure what the pretty colours mean... I'm guessing that memory free is free memory, ie isn't being used, the yellow is the memory being used as a cache, and the rest is the stuff actually being used?

Code: Select all
$ free -m
             total       used       free     shared    buffers     cached
Mem:          2008       1439        569          0        224        979
-/+ buffers/cache:        235       1773
Swap:         5887          0       5887


those numbers sort of tally up...



I have had a look round the cacti docs site, but can't really find any explanations. I have also had a google but nothing turned up... So a simple explanation or a pointer to one would be greatly appreciated,

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