[rrd-users] Re: wrong values when graphing with RRD

[Fernando Nieto]

I see Alex, maybe you are right, but, forget about the maximums then, why
the graph line value -forget the legend- is that one?, this is not the MAX
but the AVERAGE, isn't it? 
And, how can these two attached images be explained?, both are identically
generated but -h and -w option, why if there is two graphs :(( 

and thank you again for your help Alex

fernando


> -----Mensaje original-----
> De: rrd-users-bounce at list.ee.ethz.ch 
> [mailto:rrd-users-bounce at list.ee.ethz.ch] En nombre de Alex 
> van den Bogaerdt
> Enviado el: miércoles, 21 de abril de 2004 11:28
> Para: rrd-users at list.ee.ethz.ch
> Asunto: [rrd-users] Re: wrong values when graphing with RRD
> 
> On Wed, Apr 21, 2004 at 10:53:36AM +0200, Fernando Nieto wrote:
> > Hello Alex, thank you for your answer, but I'm not completely agree 
> > with you, let me explain.
> > 
> > I have something like the following:
> > 
> > 	DS:ds0:GAUGE:600:0:U
> > 	DS:ds1:GAUGE:600:0:U
> > 	RRA:AVERAGE:0.5:1:2328
> > 
> > Every record stores 8 days of samples collected every 300 
> seconds. The 
> > RRA step is 1, so every PDP is AVERAGEed to form one CPD, that is, 
> > every value becomes one CPD.
> 
> CDPs are NOT visible on the graph (nor in the legend).  
> Consolidation happens not only when data is stored, it also 
> happens when data is graphed.
> 
> I repeat:
> 
> > > MAX(  AVERAGE(5,5) , AVERAGE(0,0) )
> > > 
> > > is different from
> > > 
> > > MAX(  AVERAGE(5,5,0,0)   )
> 
> You are telling RRDtool to do something and RRDtool is doing 
> exactly what you ask it to do.  If you want the maximums, do 
> not ask for the averages.
> 
> Alex
> 

-- Attached file removed by Ecartis and put at URL below --
-- Type: image/gif
-- Size: 6k (6490 bytes)
-- URL : http://www.ee.ethz.ch/~slist/p/04-graph_small.gif


-- Attached file removed by Ecartis and put at URL below --
-- Type: image/gif
-- Size: 7k (8066 bytes)
-- URL : http://www.ee.ethz.ch/~slist/p/04-graph_big.gif


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