[rrd-users] importing large dataset
magawake at gmail.com
Sat Apr 26 16:18:12 CEST 2008
Thanks for getting back to me.
These are actually rates. It is a CPU utilization rate. These values are
point in time. So, at 2/3/03 11:00 CPU utilization is at 10%
Does that help for clarification?
On Sat, Apr 26, 2008 at 9:57 AM, Alex van den Bogaerdt <
alex at ergens.op.het.net> wrote:
> On Sat, Apr 26, 2008 at 09:30:03AM -0400, Mag Gam wrote:
> > I would like to import a very large dataset lets say 100MB text file.
> > file consists like this.
> > Date Value
> > 2/3/03 11:00 10
> > 2/3/03 11:01 12
> > 2/3/03 11:02 13
> > 2/3/03 11:03 30
> > 2/3/03 11:04 12
> > 2/3/03 11:05 13
> > It keeps going on. I can generate the epoch on the left side. However, I
> > unclear how to load this into rrdtool. I have followed the tutorial and
> > was not able to model my data properly. Can someone please show me an
> > example for the data above?
> What do these numbers mean?
> When were they valid?
> RRDtool is not a graphing program. Use e.g. gnuplot for that.
> If these numbers are rates, you still need to know when these rates
> were valid. For instance: "12", does this mean a rate between
> "2/3/03 11:00" and "2/3/03 11:01" or between
> "2/3/03 11:01" and "2/3/03 11:02"? A small but significant difference.
> RRDtool uses end times (thus: updating for 2/3/03 11:01 is updating the
> interval upto and including 2/3/03 11:01).
> Are these times in some local time or in UTC? If they are in local time,
> make sure to compensate for this and don't forget about daylight saving
> (if any).
> You will need to convert each pair into <timestamp>:<value>, and then
> give those as input to rrdtool. This is a *very* basic operation, so
> perhaps you need to explain the problem you encounter a bit more.
> Alex van den Bogaerdt
> rrd-users mailing list
> rrd-users at lists.oetiker.ch
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