[rrd-users] rrd graph issues

[Emily Chouinard]

So what I've gathered from working with this, is once I removed the 
stack and turned the line into an area it all seem to work out. 
Therefore I assume, and please correct me if I'm wrong, but when you use 
STACK the width of the line value is added so that in may case where it 
should of displayed 99% instead it displayed a value above 100%, is 
there a way to get around this so that I can still create the beautiful 
graph I want but not have the STACK affect my final displayed values?

Emily Ann Chouinard wrote:
> Hi all, I've been working with my graph for awhile to try to figure 
> out why I get values greater than 100% for my graph, which isn't 
> possible. Here is my graph definition
> rrdtool.graph('cpu.png',
>         '--start','now-3600',
>       '--end','now',
>       '--upper-limit','100',
>       '--lower-limit', '0',   
>       'DEF:uj=cpu.rrd:user:AVERAGE', #define number of jiffies
>       'DEF:nj=cpu.rrd:nice:AVERAGE',#which are the number of ticks
>         'DEF:sj=cpu.rrd:sys:AVERAGE',
>         'DEF:ij=cpu.rrd:idle:AVERAGE',
>       'CDEF:tj=uj,nj,+,sj,+,ij,+',
>       'CDEF:bo=uj,UN,0,uj,IF,0,GT,UNKN,INF,IF',
>         'AREA:bo#DDDDDD:',
>         'CDEF:usr=100,uj,*,tj,/',
>         'CDEF:nic=100,nj,*,tj,/',
>       'CDEF:sys=100,sj,*,tj,/',
>         'CDEF:idl=100,ij,*,tj,/',
>         'CDEF:tot=100,tj,*,tj,/',
>       'AREA:nic#0040A2:Nice',
>       'VDEF:maxN=nic,MAXIMUM',
>         'VDEF:minN=nic,MINIMUM',
>         'VDEF:avgN=nic,AVERAGE',
>         'GPRINT:maxN:  Max %6.2lf%%',
>         'GPRINT:minN:  Min %6.2lf%%',
>         'GPRINT:avgN:  Avg %6.2lf%%\l',
>       'AREA:sys#90C5CC:System:STACK',
>         'LINE2:1#70A5AC::STACK',
>       'VDEF:maxS=sys,MAXIMUM',
>         'VDEF:minS=sys,MINIMUM',
>         'VDEF:avgS=sys,AVERAGE',
>         'GPRINT:maxS:Max %6.2lf%%',
>         'GPRINT:minS:  Min %6.2lf%%',
>         'GPRINT:avgS:  Avg %6.2lf%%\l',
>         'AREA:usr#B0E5EC:User:STACK',
>         'LINE2:1#90C5CC::STACK',
>         'VDEF:maxU=usr,MAXIMUM',
>         'VDEF:minU=usr,MINIMUM',
>         'VDEF:avgU=usr,AVERAGE',
>         'GPRINT:maxU:  Max %6.2lf%%',
>         'GPRINT:minU:  Min %6.2lf%%',
>         'GPRINT:avgU:  Avg %6.2lf%%\l',
>       'AREA:idl#0000ff:Idle:STACK',
>       'VDEF:maxI=idl,MAXIMUM',
>       'VDEF:minI=idl,MINIMUM',
>       'VDEF:avgI=idl,AVERAGE',
>       'GPRINT:maxI:  Max %6.2lf%%',
>       'GPRINT:minI:  Min %6.2lf%%',
>       'GPRINT:avgI:  Avg %6.2lf%%\l',
>       '--vertical-label','Ticks',
>       '--title','Hourly CPU Usage',
>       'COMMENT:' + cur_date + '')
> As you can tell I have 4 data sources being graphed, and I contvert 
> these DERIVE DST into percentages so the maximum percentage is 100%, 
> and I'm getting a graph that graph above 100%. Also I've put a limit 
> on the graph to try to cope with this issue, Max 100 Min 0 and it 
> starts off good but once it updates then the limit doesn't  apply 
> anymore. I'm not sure what's going on here and why, when the values 
> aren't greated than 100 (they're about 98 or 99). Does it have 
> anything to do with the STACK command? Please any help would be 
> appreciated!
>
>
>
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