[rrd-users] Matching Math Woes

[Simon Mall]

Hi Fellow Rrd'ers!

I can't seem to work out how to reproduce the results displayed on my 
mrtg-webpage by using a script
which I will then use to display in a custom HTML report for emailing.

I want to work out the averages for ds0 and ds1.

The Avg In: and Out: is what I am after to match the below output from the 
rrd-grapher.

My Math must stink because I can't seem to get it right no matter what 
combination of days, minutes, bits and
bytes I put into the equation.

I have read several tutorials but can't seem to put my finger on it.
I am hoping something can help me out with understanding this and maybe an 
example equation to match the grapher output?


Regards,
Simon.

[root at monitor bin]# cat ./rrd-graph-stats.sh
./rrdtool graph /dev/zero \
    --start -1d \
    --end now \
    DEF:val1=/data/mrtg/www/switch-rrd/port22.rrd:ds0:AVERAGE \
    DEF:val2=/data/mrtg/www/switch-rrd/port22.rrd:ds1:AVERAGE \
    PRINT:val1:MAX:"ds0 - Max %6.2lf bps" \
    PRINT:val1:MIN:"ds0 - Min %6.2lf bps" \
    PRINT:val1:AVERAGE:"ds0 - Avg %6.2lf bps" \
    PRINT:val2:MAX:"ds1 - Max %6.2lf bps" \
    PRINT:val2:MIN:"ds1 - Min %6.2lf bps" \
    PRINT:val2:AVERAGE:"ds1 - Avg %6.2lf bps"

[root at monitor bin]# ./rrd-graph-stats.sh
0x0
ds0 - Max 10769060.55 bps
ds0 - Min  44.25 bps
ds0 - Avg 39891.32 bps
ds1 - Max 5843734.37 bps
ds1 - Min 140.14 bps
ds1 - Avg 21120.04 bps


Statistics from rrd grapher:
`Daily' Graph (5 Minute Average)
Max  In:  86.2 Mb/s (86.2%)  Average  In:  258.6 kb/s (0.3%)  Current  In:  
526.5 b/s (0.0%)
Max  Out:  46.7 Mb/s (46.7%)  Average  Out:  136.0 kb/s (0.1%)  Current  
Out:  1575.8 b/s (0.0%)

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