[collectd] RRDTool slowdowns

Alexander Wirt formorer at formorer.de
Wed Jun 30 16:04:31 CEST 2010

Mirko Buffoni schrieb am Wednesday, den 30. June 2010:

> Hi folks,
> I recently upgraded rrdtool from version 1.2 to 1.4.
> Previous version was using libattr, while the new makes use of pango / 
> fontconfig / cairo for rendering.
> I'm noticing tremendous slowdowns in generation of rrdgraphs.
> It's about 10~20 times slower than before.
> I'm currently using only dejavu-lgc-fonts, and I'm on a standard CentOS 5.3 
> distribution.
> I was wondering if anyone of you experienced such degradation problems 
> during rendering of
> collected data.
> I'm open to suggestions.  Thank you.
*speaking with my debian rrdtool maintainer hat on*

Unfortunatly that is a known problem with rrd 1.4.x, cairo is much slower
than in 1.2.x. The only way to prevent this is to stay on 1.2  


Alexander Wirt, formorer at formorer.de 
CC99 2DDD D39E 75B0 B0AA  B25C D35B BC99 BC7D 020A

More information about the collectd mailing list