[rrd-users] Re: blocy graph with description

[Lars Troen]

> rrdtool graph good.png \
>   --end $good --start $good-630000 -w 700 -h 250 \
>   --lower-limit 0 --upper-limit 100 -r \
>   DEF:user=cpu.rrd:user:AVERAGE \
>   AREA:user#00f000:user
> 
> rrdtool graph bad.png \
>   --end $bad --start $bad-630000 -w 700 -h 250 \
>   --lower-limit 0 --upper-limit 100 -r \
>   DEF:user=cpu.rrd:user:AVERAGE \
>   AREA:user#00f000:user

The blocky behaviour is because of the resolution in the graphs as
described by the RRAs. Older data have less resolution than newer graphs
and hence the blocky visualization. The graph will use the least
accurate RRD for the showing time period when generating the graph.

Lars 

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