[collectd] Traffic Monitor Units...?

Florian Forster octo at verplant.org
Fri May 12 09:06:17 CEST 2006

Hi David,

On Thu, May 11, 2006 at 09:33:37PM +1000, David Elliot wrote:
> Given that the plugin for traffic is dealing in bytes, shouldn't the
> vertical units of the graph published at:
> http://collectd.org/plugins/traffic.shtml
> ..be in bytes / second (rather than bits/s) ??

with RRDTool's `RPN expressions' you can do calculations before drawing
the graph. That's what's being done here: First the values are read from
the database; second they are multiplied by eight and last they are
Reasons for doing it like this include problems with counter overflows
if you multiply them, not saving redundant data and `because we can' ;)

If you rather had Bps (Bytes per second) it's still possible; just don't
do the multiplication ;)

Florian octo Forster
Hacker in training
GnuPG: 0x91523C3D
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