[mrtg] Re: Using perhour option
Steve Shipway
s.shipway at auckland.ac.nz
Thu Jun 15 01:05:10 MEST 2006
> So I attempted to use "perhour" option. However, after
> printing couple of pages on the printer, the graphs have
> strange peaks, showing something like couple of hundred pages
> printed per hour (which is wrong). The data is polled from
> the printer every 5 minutes (with some other data, like
> network traffic, memory usage and toner levels).
You'll probably want to suppress the daily graph.
This is because a 'perhour' graph is just a 'perminute' graph multiplied by
60, which is a persecond graph multiplied by 60.
Since the normal interval is 5mins, a perminute graph will be 'accurate' as
the per-x is less than the graph interval.
However, for a perhour graph, what should it show over a 5min interval that
has a count of 10 pages? This would sort of indicate a per-hour of 120
pages, so it shows that. You get weird peaks. After all, one print in a
5-min period *is* 12/hour, over that period. It just doesnt make sense to
look at a graph with granularity smaller than your per- interval.
So, add in something like
Suppress[xxxx]: d
to suppress the daily graphs. The weekly graphs have an interval of 30mins
(monthly has a 2-h interval, yearly has a 1d interval) but the effect will
be smaller here.
HTH
Steve
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