Graphing Question

[Neil Franken]

Hi All

 

I am busy helping with some ASP.NET monitoring. I got the performance
counters to report. Now they want graphs so I got a basic graph up and
running. Basically I want to show a graph with two lines. 1 Line
indicates the current requests(green) the other the queued
requests(red). Like I said I got the graph running and I have the two
values reporting. However it appears a little funny. The graph is moving
into the negative range see attached screen shot.

 

 

 

What I have seen is that the requests queue are constantly 0. The
current request range from 0-20. Also the number on the y axis reports
it in milli and it is a little misleading. As I am not a rrdtool expert
I think it is averaging the two series and getting this value?

 

Here is my graph definition:

[asphealth]

 

              TITLE ASP Over All Health

              YAXIS Number

              DEF:RequestsQueued=asphealth.rrd:RequestsQueued:AVERAGE

              DEF:RequestCurrent=asphealth.rrd:RequestCurrent:AVERAGE

              LINE2:RequestsQueued#FF0000:RequestsQueued

              LINE2:RequestCurrent#00FF66:RequestCurrent

              COMMENT:\n

              GPRINT:RequestsQueued:LAST:RequestsQueued\: %5.1lf%s (cur)

              GPRINT:RequestsQueued:MAX: \: %5.1lf%s (max)

              GPRINT:RequestsQueued:MIN: \: %5.1lf%s (min)

              GPRINT:RequestsQueued:AVERAGE: \: %5.1lf%s (avg)\n

              GPRINT:RequestCurrent:LAST:RequestCurrent\: %5.1lf%s (cur)

              GPRINT:RequestCurrent:MAX: \: %5.1lf%s (max)

              GPRINT:RequestCurrent:MIN: \: %5.1lf%s (min)

              GPRINT:RequestCurrent:AVERAGE: \: %5.1lf%s (avg)\n

 

A typical data set looks like this:

ASP Health Check:

  ApplicationRestarts:        0

 ApplicationRunning: 3

 RequestsQueued:     0

 RequestCurrent:     6

 

 

 

Like I said it is working but the values are misleading. Any of your
bright people got some pointers? I had a read through the rrdtool
documentation and I realised it is a very rich tool. Anyone got some
ideas?

 

Regards

Neil

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