Linux - Memory Usage broken?

[Weedy]

http://weedy.1.vg/stats/graph_1.html

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Kana-chan ~ # free -kt
             total       used       free     shared    buffers     cached
Mem:        255332     242856      12476          0      18500      66660
-/+ buffers/cache:     157696      97636
Swap:       499960        200     499760
Total:      755292     243056     512236

free mem is way off any ideas?

[gandalf]

Please post you graph along with your post as an attachment
Thanks
Reinhard

[Weedy]

this thing?

[rony]

That seems right....

[Weedy]

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             total       used       free
Mem:        255332     242856      12476 <-- look here

and then the graph says 3k, when i have more like 12000k

[gandalf]

Please check, whether CDEFs are used for the graph/legend items
Reinhard

[Weedy]

what is a CDEF and where do i look?

edit: nvm found it, all the items do not use CDEF

[gandalf]

The templates you're currently using are for local linux machines only. They use the script linux_memory.pl which in turn uses /proc/meminfo. Please View Poller Cache to see

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 Data Source: Localhost - Memory - Free
RRD: /var/www/html/workspace/branch/rra/localhost_mem_buffers_3.rrd
Action: 1, Script: /usr/bin/perl /var/www/html/workspace/branch/scripts/linux_memory.pl MemFree:

and execute this from command line. This may deviate from the command you're using.
Personally, I'd like to use the ucd/net memory stuff as this will work for remote hosts as well
Reinhard

[Weedy]

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Kana-chan ~ # /usr/bin/perl /var/www/localhost/htdocs/cacti/scripts/linux_memory.pl SwapFree:
354696
Kana-chan ~ # /usr/bin/perl /var/www/localhost/htdocs/cacti/scripts/linux_memory.pl MemFree:
11508
Kana-chan ~ # free -t
             total       used       free     shared    buffers     cached
Mem:        255332     242756      12576          0      34440      44276
-/+ buffers/cache:     164040      91292
Swap:       499960     145264     354696
Total:      755292     388020     367272

the numbers look right the graph doesn't

[cigamit]

Modify the Graph template "Linux - Memory Usage" and modify each "Graph Template Item" to use the CDEF "Multiply by 1024"

Had the same issue with that template on all my Linux servers.

[Weedy]

i really should have thought of that

[gandalf]

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             total       used       free
Mem:        255332     242856      12476 <-- look here

and then the graph says 3k, when i have more like 12000k

Even took this into account. But the difference between 3 K and 12476 is not matched by multiplying with 1024, eh?
Nevertheless, fine that's working for you
Reinhard