[mrtg] Re: script question

Alex van den Bogaerdt alex at slot.hollandcasino.nl
Fri Jul 13 16:55:45 MEST 2001

David Sawyer wrote:

> I have just received a few mails regarding the post I just made, so maybe
> I'm wrong in what I say but this is what I believe is the difference between
> Gauge and Absolute is.
> Gauge:
> MRTG will log the actual value returned.
> Absolute:
> MRTG will take the actual value returned and divide it by the polling gap
> (default 300 seconds)
> Default ('gauge' or 'absolute' option not used):
> MRTG will minus the previous value from the new value and divide the answer
> by the polling gap.

This is correct.  Note however that the polling gap does *not* default to
300 seconds, it is the actual measured time inbetween to polls.

The "problem" is that gauge and absolute can be put into the config file
as the one overrides the other.  It does therefore not hurt to include them
both. OTOH other applications (like maybe 14all.cgi) may get into problems
when they use a different approach to parsing the config file.

 / alex at slot.hollandcasino.nl                  alex at ergens.op.het.net \
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