[rrd-users] Re: Graphing
cpope at sell.com
Thu Jan 3 20:12:09 MET 2002
Thank you for the reply.
In that case, do I even need the CF AVERAGE?
couldn't I just
rrdtool create user.rdd \
fill it with data and
rrdtool graph users.png \
Or am I way off-base here?
On Thu, 3 Jan 2002 08:38:02 -1000
Clifton Royston <cliftonr at lava.net> wrote:
> On Thu, Jan 03, 2002 at 12:42:19PM -0600, Christohper Pope wrote:
> > Say this returns something like 35 users the first time, and 40 users
> > the second time.
> > I issue an update into the users.rrd w/the following create definition:
> > rrdtool create --start `date +%s` user.rrd \
> > DS:signin:GAUGE:600:0:U \
> > RRA:AVERAGE:0.5:1:288 \
> > RRA:AVERAGE:0.5:3:1680 \
> > RRA:AVERAGE:0.5:6:1440 \
> > RRA:AVERAGE:0.5:288:365
> > Graphing this, the results are in signins per second and i get
> > something like (40 - 35)/(300 secs).
> Something's wrong right there, because with a Gauge (think
> "thermometer") time rates do not get stored or computed for the graph;
> just the values that got stored.
> The calculation you describe is what would happen for COUNTER or DERIVE
> types, but shouldn't happen for a gauge.
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