[rrd-users] Still trying to create a graph from multiple sources in RRDtool

Matthew M. Boedicker matthewm at boedicker.org
Fri Jun 13 17:40:28 CEST 2008

If you have multiple DSs you can update them by using the --template option
to rrdtool update like this:

rrdtool update file.rrd --template DS1name:DS2name:DS3name N:DS1value:DS2value:DS3value

For CPU usage you might want to try GAUGE instead of COUNTER. For graphing
them you could use 3 different color AREAs with STACK. The graph would have
3 DEFs (one for each data source) and 3 AREAs.

On Fri, Jun 13, 2008 at 11:06:05AM -0400, Emily Chouinard wrote:
> Still lost without a clue. I know not everyone is working with python 
> but any help with the RRDtool aspect would be greatly appreciated. I 
> tried declaring all three sources as DS in the create file but I don't 
> know how to update, let alone graph all this information. I'm just 
> looking for a how to, the documentation very briefly describes multiple 
> sources and I tried that, failed and now I'm still looking for a way to 
> take the CPU usage of user, system and idle, plot them together and 
> compare the difference in percentage of what they used. So so far I've 
> tried creating counters, and it didn't seem to work and now I'm just 
> completely and utterly lost.
> Thanks you!
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