[rrd-developers] Double Y-axis

Ruud H.G. van Tol rvtol at isolution.nl
Fri Nov 9 08:57:30 CET 2007

Erik Freiholtz wrote:

> For years I've been using a patched version of rrdtool 1.2.11.
> The patch makes it possible to put the Y-axis on both sides. This is
> very useful on larger graphs. (http://www.temperatur.nu/linkoping.html)
> A short while ago I'd upgrade my server and are now running a 64bit-system.
> The memory leaks in 1.2.11 seems to be even worse now and every now and
> then I get rrdtool processes that fast consumes all available memory and
> crashes the system.
> Even due to the fact that I'm not very good at programing I'd manage to
> manually apply the old 1.2.11 patch to 1.2.23 and it seems to work fine.
> Anyone on this list that are interested in this patch?
> I have no clue who wrote the patch, and my efforts in finding any
> information on the net does not give any answers.

I once created such a patch for 1.2.11, see:

I was going to enhance it to have an independent 2nd Y-axis, but started using
and lost interest.

Affijn, Ruud

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